ZOOB Car Designer lets you build three cars at the same time to race against each other, or build a 12 wheeler flatbed! The set includes 76 ZOOB pieces, 12 wheels that work like gears and 3 instruction guides to build a Supersonic Stinger, a Gear Getter and more. ZOOB is not like any other building set - the pieces include gears, axles and joints that snap, click, and pop together! With rotating, spinning and extendable parts you can actually design a toy to play with, instead of just building something to look at. Create monsters - or vehicles - or monsters that turn into vehicles! ZOOBMobile puts wheels on your creations to make your ZOOB go ZOOM! Recommended for children 6 years of age and older.