This 12 inch kids bike is a practical first bike for beginners ages 3 to 8, including a 4 year old or 5 year old rider, and it meets Astm and Cpsia safety standards. Both the handlebar and the seat adjust in height, so you can set the fit the day it arrives and raise it again as your child grows. A dual brake system pairs a front hand brake with a rear coaster brake, giving boys and girls two easy ways to stop, while an enclosed chain guard helps protect little feet and reflectors add visibility. As a toddler bike with training wheels, it keeps first-time riders steady on sidewalks, driveways and park paths, and the detachable wheels come off when your child is ready to balance alone. Shock-absorbing tires keep the ride smooth, and a sturdy metal frame, anti-slip pedals, an ergonomic seat and an included bell complete this toddler bicycle. A properly fitted helmet should be worn on every ride. Adult assembly and adult supervision are required. Not suitable for children under 3 years.