This versatile wheel loader construction vehicle has a tipping arm with 2 positions and a momentum motor that allows it to travel forward on its own. Simply give the car a push and watch it speed along the tracks or any hard surface! * Designed for the Kullerbu Play Track System, the wheels rest on top of the tracks allowing it to travel along like a roller coaster. Please note: While HABA Cars are mostly compatible with the Kullerbu Play system, there are certain accessory pieces (such as the universal steep curve) that work only with Kullerbu balls and cannot accommodate these vehicles. * Wheel loader measures 3.75" L x 2.75" W and is made of ABS plastic. Suitable for children ages 2 and up. * This wheel loader can push balls along the Kullerbu track or carry balls with it's tipping arm elevated. HABA Cars are just as much fun off the track and can be enjoyed as a stand-alone accessory.