6 years & up. ZOOB® is a unique building set and unlike any other! Pieces include gears, axles and joints that snap, click, and pop together to make 36 creations, including a ZOOBasuraus or a ZOOBcycle -- or have fun creating your own. The parts rotate, spin and extend so you can actually design a toy to play with, instead of just building something to look at. The possibilities are endless as your imagination. 250 piece set.