Zoob Fastback H2HFeaturing motorized pull back action, these ZOOB mobiles can really move! Pieces snap together to simultaneously create two Fastback vehicles. Pit them against each other in a head to head challenge, or combine the motors into one super charged vehicle that can travel up to 40 feet! Experiment with over 20 vehicle designs. Includes 45 pieces, 8 wheels and 2 pull back motors. No batteries required. Pieces are compatible with other ZOOB sets.