Smart Start design features a durable steel frame and kid-specific proportions for easier pedaling and handling Includes both rear coaster break and front caliper brake; easing the transition to a bigger, hand-brake-only bike when they’re ready Full coverage chain guard to protect little hands, feet, and clothing Fits children 2 – 4 years old, or 28 – 38 inches tall. Adjustable saddle and a slack seat-tube angle allow the bike to grow with your child Includes training wheels, saddle handle for towing & storage, number plate, and limited lifetime for as long as you own the bike