Conquer unbelievable challenges with this tricked out MOD MACHINES system truck! Kids can create a custom street or all-terrain style vehicle with a variety of cool parts and accessories such as monster tires and nitro tanks. This 14-inch terrain tackling vehicle features a two-speed removable motorized engine with sound effects that can fit into any of the other vehicles in the MOD MACHINES system, each sold separately, converting them into powered machines. Requires two "C" batteries, included.