Classic Flyer by Kettler 12" Retro Bike with Removable Training Wheels, Youth Ages 3 to 6 Designed with a durable powder coated steel frame, this bicycle features a classic retro design with modern safety standards and innovations Equipped with a reliable rear coaster, foot braking system that makes it easy to brake; Large, anti-slip pedals ensure proper foot position and handling Safety reflectors are mounted on the front and back of the frame, and along the edges of the pedals which help to keep your child visible during low-light use Puncture-resistant, all-terrain tires surround the 12" alloy rims, delivering a smooth ride; Adjustable padded seat and handlebars allow you to customize the fit Includes a heavy-duty, shatter-resistant metal chain guard, a 1-piece steel crankshaft, and removable training wheels; Recommended for children ages 3 to 6