Unlimited fuel economy and an ultra-smooth ride! This ZOOBMobile Racer set has 37 ZOOB pieces in special colors designed for building vehicles, 4 wheels with rubber tires that are notched to work like gears, and 2 guides with instructions for nine different model cars. As usual, all the parts are expandable & compatible with all other ZOOB sets. The standard equipment in this set includes 37 ZOOB pieces, 4 high-performance wheels, axles, and tires, owner's manual with directions for 9 ZOOBMobiles and a colorful storage box. Ages 6 & Up.Contents include: 37 ZOOB pieces, 4 high-performance wheels, axles, and tires, owner's manual with directions for 9 ZOOBMobiles and a colorful storage boxFor 1 or more playersAges 6 and upMade in ChinaBrand new condition in original packagingWipe clean with dry or damp clothWarning: Choking Hazard - Contains small parts not suitable for children under 3 years.