The Boy's 20-inch Magna Throttle Bike is made of a durable steel frame and decorated in black and red. It features cool graphics and stylish accents for a trendy set of wheels. The training wheels are easy to attach and remove to accommodate your little guy while he is learning to ride. The braking system offers a rear coaster for solid control. This steel bike is equipped with an adjustable seat so it can be removed as needed or adjusted as your child grows.