The Classic Big Wheel is scaled down for the younger set, with a low center of gravity for comfort & safety. The Teenage Mutant Ninja Turtles Big Wheel Junior features a contoured seat that is part of the main body & an 8 1/2" front wheel. It has easy to grip handle bars. Body is designed for easy on & off. Sturdy plastic construction. Pedal powered. Ages 1 1/2-4.