Build and test three different motorized vehicles— a dragster, a bulldozer, and a dune buddy. The Power Core has two different gears that provide high speeds, high power, and options for going forward and reverse. With MotorBlox, young engineers will learn about gears, torque, traction, vehicle design, and how to problem solve as they build. With MotorBlox the possibilities are endless! Kids can add additional blocks to create their own designs. Colorful bricks not included. 3 AAA Batteries required. (Batteries not included).