The GEOSMART Mars Explorer is the ultimate in dynamic magnetic construction. This 51 piece set includes lights, track wheels, motor and a remote control. Kids can build all kinds of creations and make them go. The innovation of Mars Explorer begins at the core of its pieces with a new, patented double safety system. We recognize that safety is the most important consideration for parents purchasing a magnetic construction toy, and GEOSMART was conceived and designed with ultimate safety in mind. The excellence of our design is evident in each piece, with bright colors and powerful magnets. GEOSMART structures feel strong and sturdy. Mars Explorer offers extensive play value by enabling kids to build all kinds of moving vehicles, with lights that add the thrill of moving these vehicles in the dark. , , GEOSMART is the future of geomagnetic play. An ideal stem magnetic construction set, GEOSMART enables fun learning at home and in the classroom. Featuring bright colors, strong magnetic pieces and a patented double safety system, GEOSMART offers unsurpassed safety and durability for endless creative play. The GEOSMART Mars Explorer set includes: 8 Triangles, 8 Squares, 2 Trapezoids, 2 Diamonds, 2 Isosceles Triangles, 2 Square Panels, 2 Triangle Panels, 2 Diamond Panels, 2 Isosceles Panels, 1 LED Panel, 2 Tracks, 4 Track Wheels, 3 Tube Connectors, 1 Tube Coupling, 4 Short Snap-in Arms, 2 Long Snap-in Arms, 2 Snap-in Motors and 1 IR Transmitter and 1 Receiver. Note that this set requires 7 AAA batteries (not included).