ZOOB Racer contains everything you need to build 9 unique vehicles! Create a Mach 5 Racecar or have an outer space adventure with a Lunar Explorer! The set includes 37 ZOOB pieces, 4 wheels that work like gears and 2 instruction guides to build Supersonic Stinger, Tri-Sonic Cruiser, ZOOBster, ZOOB Buggy and others. 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.