Wheels are decorations that you will be able to acquire as you complete Missions and win Levels. By doing so, you will unlock different designs that you can equip to improve the wheel’s aesthetic in your streaks.
To access your collection, select the second icon on the bar at the bottom of the screen. In this section, you will be able to select the wheel you want and press the "Equip" button to start using it.
You can also access the "Missions" section by selecting the map icon located on the left-hand side of the main screen. Once you do, you will find the list of Missions you must complete to obtain a Cup or wheel prize.
We invite you to visit the article: "Missions" to get more information on this game mode.