Schwinn SmartStart steel kids frame features narrower, kid-specific proportions for easier pedaling and handling. • Includes both intuitive rear coaster brake and front/rear hand brakes to help transition to a bigger, hand-brake-only bike. • Kid-specific saddle and slack seat tube angle allows for proper leg extension and easier pedaling, growing with your child. • Thinner grips are easier for smaller hands to grasp. Training wheels included. • 12 inch wheels fit children 2 to 4 years old, or 28 to 38 inches tall. Comes unassembled and includes a limited lifetime warranty for as long as you own the bike.