Starting is a single button press on the handlebar, and the 2 km/h limit means a toddler of 18 to 36 months can be trusted with it on a patio or a kitchen floor. The wheels are chosen to run quietly indoors as well as outside. LED lights and an MP3 connection add sound and light to the ride. PP and steel construction, 26" x 17.3" x 16.5", carrying 44 lbs. A 6V 4Ah battery charges in 8 to 12 hours. Net weight 11 lbs.