unlock & spin free play in the wizard of oz: a comprehensive guide

The Wizard of Oz is a beloved slot machine game that has captivated players with its enchanting theme, vibrant graphics, and exciting bonus features. One of the most thrilling aspects of this game is the Unlock & Spin Free Play feature. This guide will walk you through everything you need to know to maximize your enjoyment and potential winnings with this feature.What is Unlock & Spin Free Play?Unlock & Spin Free Play is a bonus feature in The Wizard of Oz slot game that can be triggered during the base game.

  • Lucky Ace Palace
    new
    Luck&Luxury100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Starlight Betting Lounge
    Celestial Bet100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Cash King Palace
    Royal Wins100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Golden Spin Casino
    Luxury Play100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Spin Palace Casino
    Win Big Now100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Silver Fox Slots
    Elegance+Fun100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Lucky Ace Casino
    Luck&Luxury100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Diamond Crown Casino
    Opulence & Fun100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Royal Fortune Gaming
    Opulence & Thrills100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Royal Flush Lounge
    Opulent Play100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more

unlock & spin free play in the wizard of oz: a comprehensive guide

The Wizard of Oz is a beloved slot machine game that has captivated players with its enchanting theme, vibrant graphics, and exciting bonus features. One of the most thrilling aspects of this game is the Unlock & Spin Free Play feature. This guide will walk you through everything you need to know to maximize your enjoyment and potential winnings with this feature.

What is Unlock & Spin Free Play?

Unlock & Spin Free Play is a bonus feature in The Wizard of Oz slot game that can be triggered during the base game. When activated, it offers players the chance to win significant rewards by unlocking various symbols and spinning them for potential prizes.

How to Trigger Unlock & Spin Free Play

To trigger the Unlock & Spin Free Play feature, you need to land specific combinations of symbols on the reels. Here’s how:

  1. Landing the Right Symbols: Look out for the special “Unlock & Spin” symbols on the reels. These symbols typically appear during the base game.
  2. Symbol Combinations: You need to land a certain number of these special symbols to activate the feature. The exact number can vary, so always check the game’s paytable for specific details.

Once the feature is triggered, you will be taken to a new screen where you can unlock and spin various symbols for potential rewards. Here’s a step-by-step guide to navigating this feature:

Step 1: Unlock Symbols

  • Select Symbols: You will be presented with a grid of locked symbols. Click on the symbols to unlock them.
  • Reveal Prizes: Each unlocked symbol will reveal a prize, which could be a cash reward, a multiplier, or a special feature.

Step 2: Spin the Wheel

  • Spin the Wheel: After unlocking the symbols, you will be given the opportunity to spin a wheel. The wheel will determine your final prize.
  • Potential Rewards: The wheel can land on various segments, each offering different rewards such as cash prizes, multipliers, or additional spins.

Step 3: Collect Your Prize

  • Final Prize: Once the wheel stops spinning, your final prize will be revealed. This could be a significant cash reward or a special feature that enhances your gameplay.
  • Return to Base Game: After collecting your prize, you will be returned to the base game to continue playing.

Tips for Maximizing Your Winnings

To make the most out of the Unlock & Spin Free Play feature, consider the following tips:

  • Bet Strategically: While the feature can be triggered at any bet level, higher bets may increase your chances of landing the special symbols needed to activate it.
  • Understand the Paytable: Familiarize yourself with the game’s paytable to know the value of each symbol and the potential rewards from the Unlock & Spin feature.
  • Manage Your Bankroll: Ensure you have a sufficient bankroll to sustain your gameplay and take advantage of the Unlock & Spin feature when it appears.

The Unlock & Spin Free Play feature in The Wizard of Oz slot game offers an exciting and potentially lucrative opportunity for players. By understanding how to trigger and navigate this feature, you can enhance your gaming experience and increase your chances of winning big. So, start spinning and unlocking those symbols to see what rewards await you in the magical world of Oz!

wizard of oz slots free coins 2019

The Wizard of Oz Slots game has been a fan favorite since its release, offering players a chance to relive the magic of the classic movie while enjoying the thrill of slot machines. One of the most sought-after aspects of the game is the availability of free coins, which can enhance the gaming experience significantly. This article provides a comprehensive guide on how to obtain Wizard of Oz Slots free coins in 2019.

Understanding Wizard of Oz Slots

Before diving into the strategies for obtaining free coins, it’s essential to understand what Wizard of Oz Slots is all about.

  • Game Overview: Wizard of Oz Slots is a casino-style game that combines the nostalgia of the classic movie with the excitement of slot machines.
  • Gameplay: Players spin the reels to match symbols and win coins, which can be used to unlock new features and levels.
  • Features: The game includes various features such as bonus rounds, free spins, and special symbols that can significantly boost your winnings.

Methods to Obtain Free Coins in 2019

1. Daily Bonuses

One of the most straightforward ways to get free coins is by taking advantage of daily bonuses offered by the game.

  • Daily Login Bonus: Simply log in each day to receive a bonus. The longer you consecutively log in, the bigger the bonus.
  • Hourly Bonuses: Check back every hour to claim additional free coins.

2. Social Media Promotions

Engaging with the game’s social media channels can also yield free coins.

  • Facebook: Like and follow the official Wizard of Oz Slots Facebook page for regular updates and free coin giveaways.
  • Twitter: Follow the game’s Twitter account for exclusive promotions and free coin opportunities.

3. In-Game Events and Challenges

Participating in in-game events and challenges can also reward you with free coins.

  • Special Events: Keep an eye out for special events that offer free coins as rewards for completing specific tasks.
  • Challenges: Complete daily and weekly challenges to earn free coins and other rewards.

4. Referral Programs

Inviting friends to play the game can also help you earn free coins.

  • Referral Bonuses: Share your referral link with friends. When they sign up and play, you both receive free coins.

5. Third-Party Websites and Apps

There are several third-party websites and apps that offer free coins for Wizard of Oz Slots.

  • Coin Generators: Some websites claim to offer free coins through generators. Be cautious and ensure the site is legitimate before providing any personal information.
  • Promotional Apps: Download apps that offer free coins as part of their promotions.

Tips for Maximizing Free Coins

1. Stay Active

The more active you are in the game, the more opportunities you have to earn free coins.

  • Regular Logins: Make it a habit to log in daily to claim your bonuses.
  • Participate in Events: Actively participate in all available events and challenges.

2. Leverage Social Media

Engaging with the game’s social media channels can provide additional free coin opportunities.

  • Follow Regularly: Keep up with the latest posts and updates to stay informed about free coin promotions.

3. Be Cautious with Third-Party Sources

While third-party websites and apps can offer free coins, it’s essential to be cautious.

  • Verify Legitimacy: Ensure any third-party source you use is legitimate and secure.
  • Avoid Scams: Be wary of scams that may ask for personal information or payment.

Obtaining free coins for Wizard of Oz Slots in 2019 is entirely possible with the right strategies. By taking advantage of daily bonuses, social media promotions, in-game events, referral programs, and third-party sources, you can enhance your gaming experience without spending a dime. Remember to stay active, engage with the community, and always be cautious when using third-party sources. Enjoy the magic of the Wizard of Oz Slots with a pocket full of free coins!

unlock free massive coins in wizard of oz slots 2022 - win big now!

Are you ready to embark on an enchanting journey through the magical land of Oz? The Wizard of Oz Slots game offers an exciting opportunity to win big while reliving the classic tale. In this article, we’ll guide you through unlocking free massive coins in Wizard of Oz Slots 2022, ensuring you have the best chance to win big.

Introduction to Wizard of Oz Slots

Wizard of Oz Slots is a popular online casino game that combines the nostalgia of the beloved movie with the thrill of slot machine gameplay. Developed by Scientific Games, this game features vibrant graphics, engaging soundtracks, and a variety of bonus features that can lead to substantial winnings.

Key Features of Wizard of Oz Slots

Before diving into the strategies for unlocking free massive coins, let’s explore some of the key features that make this game so captivating:

  • Classic Characters: Encounter beloved characters like Dorothy, the Scarecrow, the Tin Man, and the Cowardly Lion as you spin the reels.
  • Multiple Bonus Rounds: Engage in exciting bonus rounds that can significantly boost your winnings.
  • Progressive Jackpots: Compete for life-changing jackpots that grow with each spin.
  • Interactive Gameplay: Enjoy a dynamic and interactive experience with features like the Road to Emerald City and the Winged Monkey.

Strategies to Unlock Free Massive Coins

To maximize your chances of winning big in Wizard of Oz Slots, consider the following strategies:

1. Utilize Free Spins

Free spins are a crucial element in unlocking massive coins. Look out for opportunities to trigger free spins through special symbols or bonus rounds. During free spins, your chances of hitting winning combinations increase significantly.

2. Activate Bonus Features

Engage with the game’s bonus features to unlock additional rewards. Here are some notable bonus features:

  • Road to Emerald City: Follow the yellow brick road to unlock multipliers and free spins.
  • Winged Monkey Feature: This feature can award you with up to 8 free spins and random wilds.
  • Jackpot Prizes: Aim for the progressive jackpots that can offer substantial payouts.

3. Play Regularly

Consistency is key. Playing regularly increases your chances of triggering bonus features and hitting winning combinations. Additionally, many online casinos offer loyalty programs that reward frequent players with extra coins and bonuses.

4. Take Advantage of Promotions

Keep an eye out for promotions and special offers from online casinos. These can include:

  • Welcome Bonuses: New players often receive free coins or spins upon signing up.
  • Daily Rewards: Some casinos offer daily bonuses that can be used on Wizard of Oz Slots.
  • Seasonal Promotions: Participate in seasonal events for extra chances to win.

5. Manage Your Bankroll

Effective bankroll management is essential for long-term success. Set a budget for your gameplay and stick to it. This ensures that you can enjoy the game without risking more than you can afford.

Wizard of Oz Slots offers an enchanting and rewarding experience for players looking to win big. By utilizing free spins, activating bonus features, playing regularly, taking advantage of promotions, and managing your bankroll, you can unlock free massive coins and increase your chances of winning. So, dive into the magical world of Oz and start spinning those reels today!

wizard of oz free slots casino free coins

Introduction to Wizard of Oz Free Slots Casino

The Wizard of Oz Free Slots Casino is a popular online gaming platform that offers a variety of slot machine games inspired by the classic movie “The Wizard of Oz.” Players can enjoy a rich gaming experience with stunning graphics, immersive soundtracks, and engaging gameplay. One of the key features that attract players to this platform is the availability of free coins, which can be used to play various slot games without spending real money.

How to Get Free Coins in Wizard of Oz Free Slots Casino

Daily Bonuses

  • Daily Login Bonus: Players receive free coins every day they log in to the game. The amount of free coins increases with the number of consecutive days logged in.
  • Hourly Bonus: A small amount of free coins is available every hour, encouraging players to return frequently.

Social Media and External Promotions

  • Facebook Connect: Linking your game account to Facebook can unlock additional free coins and special bonuses.
  • Promotional Offers: The game frequently runs promotions and giveaways on social media platforms like Facebook, Twitter, and Instagram. Participating in these can earn you extra free coins.

In-Game Achievements and Challenges

  • Achievement Rewards: Completing various in-game achievements can reward players with free coins.
  • Special Challenges: The game offers special challenges and events that, when completed, provide free coins as rewards.

Referral Program

  • Invite Friends: Inviting friends to join the game can earn you free coins. The more friends you invite and who join, the more free coins you can accumulate.

Tips for Maximizing Your Free Coins

Regularly Log In

  • Consistently logging in to the game ensures you don’t miss out on daily and hourly bonuses.

Participate in All Available Promotions

  • Actively engage with the game’s social media pages and participate in all available promotions to maximize your free coin earnings.

Complete All Achievements

  • Make it a point to complete all in-game achievements and challenges to earn the maximum number of free coins.

Invite Friends Strategically

  • Invite friends who are likely to join and play the game to ensure you receive the referral rewards.

The Wizard of Oz Free Slots Casino offers a plethora of opportunities for players to earn free coins, enhancing their gaming experience without the need for real money. By taking advantage of daily bonuses, social media promotions, in-game achievements, and the referral program, players can maximize their free coin earnings and enjoy extended gameplay.

Frequently Questions

How to Unlock and Spin Free Play in The Wizard of Oz: A Step-by-Step Guide?

Unlocking Free Play in 'The Wizard of Oz' slot game involves a few strategic steps. First, ensure you have accumulated enough scatter symbols, typically the Emerald City icon, which triggers the Free Spin feature. Once activated, you'll be awarded a set number of free spins, often between 10 to 20. During these spins, additional scatter symbols can retrigger the feature, extending your playtime. To maximize your chances, bet higher to increase scatter symbol appearances. This feature not only offers extended gameplay but also enhances your potential winnings, making it a key strategy in 'The Wizard of Oz' slot game.

What is the Comprehensive Guide to Unlocking Free Play in The Wizard of Oz?

Unlocking free play in The Wizard of Oz slots involves understanding the game's bonus features. Look for the Emerald City feature, triggered by landing the Scatter symbol. Collecting these symbols can lead to free spins and multipliers. Additionally, the Road to Emerald City bonus can award cash prizes and entry to the Wizard Bonus. To maximize your chances, play with all paylines active and aim for high-value symbols. Remember, free play is a reward for strategic gameplay and persistence. Follow these tips to enhance your experience and increase your odds of unlocking free play in The Wizard of Oz slots.

 

How can I unlock the magic of Oz with free play on Lock 'n Spin slot game?

Unlocking the magic of Oz with free play on Lock 'n Spin slot game is simple and exciting. First, find a reputable online casino that offers the game. Register an account and check for any welcome bonuses or free spins promotions. Once logged in, navigate to the Lock 'n Spin slot game and select 'Free Play' mode. This allows you to experience the game without wagering real money. Engage with the game's features, such as the Lock 'n Spin bonus, which locks in winning symbols for re-spins. Enjoy the enchanting graphics and sounds of Oz while strategizing your next move. Remember, free play is a great way to familiarize yourself with the game mechanics before playing with real money.

What are the best ways to enjoy Wizard of Oz slots with free coins and games?

To enjoy Wizard of Oz slots with free coins and games, start by taking advantage of welcome bonuses and daily promotions offered by online casinos. Participate in social media contests and follow the game's official pages for exclusive free coin giveaways. Utilize in-game achievements and challenges to earn additional free coins. Join loyalty programs that reward frequent play with free spins and coins. Regularly check for no-deposit bonuses and free spin offers. Engage with the community through forums and groups to stay updated on the latest free coin opportunities. By leveraging these strategies, you can maximize your free play and enjoy the Wizard of Oz slots experience without spending a dime.

How can I unlock free play in The Wizard of Oz: Spin the Wheel & Win Big?

To unlock free play in 'The Wizard of Oz: Spin the Wheel & Win Big,' you typically need to accumulate a certain number of loyalty points or complete specific in-game tasks. These tasks may include playing the game for a set number of days, reaching a particular level, or participating in special events. Check the game's menu for a 'Free Play' or 'Loyalty Points' section to see your progress and any available rewards. Engaging with the game regularly and following its updates can help you unlock free play opportunities, enhancing your gaming experience without additional cost.