The Prize Wheel is a feature which players can use freely every 24 hours a day. (ex: if you spin at 8 AM, you get another free spin the next day at 8 AM) to receive accessories, textures, items, coins, and very rarely, gems. Gems can be used to unlock the Lucky Prize Wheel, which contains ever more rare and special items, most commonly animated blockster limbs, often worth hundreds of coins.  
Prize Wheel
Community content is available under CC-BY-SA unless otherwise noted.