Techno Gears Monster Truck and Off Road Racer SetFeatures:- 60+ pieces per set - interlocking plates, gears, motors, 3-D connectors, instruction manual and more! Each set requires 2 x AA batteries (not included). - Create 2 fully functioning vehicles that whiz across the floor, powered by the motors included in the sets. - Promotes Problem Solving, Reasoning, Mechanics, Creativity and Engineering skills; - Supports STEM Education-Recommended Ages: 6 to 12 yearsTechno Gears Monster Truck and Off Road Racer Set