The Original Big Wheel Marvel Big Wheel Spiderman Junior Racer The Classic Big Wheel is scaled down for the younger set, with a low center of gravity for comfort & safety. The Ultimate Spider-Man 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. Pedal powered. Easy to assemble (tools required) Sturdy plastic construction This pedal powered ride-on is 15.9"w x 15.6"h x 24.4"d Recommended weight limit of 35 lbs For ages 1-1/2 to 4 years