STURDY FRAME - Durable Hi-Ten steel frame and fork provide awesome impact resistance when riding over rocky and bumpy terrain. DESIGN FOR KIDS - The kids bike comes with coaster brake, simply pushing the pedal backwards to stop the bike. Joystar blue children bike with 12 inch wheels for 2-9 Years Old Girls also equipped with training wheels, a great support for toddlers to improve balance while riding a bike. 16" & 18" kids bicycle is also equipped with hand brake. CHOOSE THE RIGHT SIZE 12 inch is suggested for a girl's ages 2 - 4 years (recommended height 32"- 41 ); 14 inch for 3 - 5 years (height 36" - 47"); 16 inch for 4 - 7 years (height 41" - 53"); 18 inch for 5 - 9 years (height 43" - 59"). MINIMUM MAINTENANCE - Environmental friendly raw materials bring kids a healthy ride.