Explore new horizons with the GeoSmart Lunar Rover. This 30-piece magnetic construction set features 5 different geometric shapes and wheels… you can build your own Lunar Rover and watch it go! GeoSmart was conceived and designed with safety in mind. GeoSmart pieces feature a new, patented safety system. Magnets are contained within a double-welded inner core, locked in place by stainless steel caps. Covering this inner core is high-quality polycarbonate housing. The end result is pieces that are not only strong and bright, but extremely safe and durable.