6-8 Years Recommended Age Range 20x1.75” Wide, Grippy Tires 21.5”-27.5" Adjustable Seat Heigh Rear Coaster Brake

4-6 Years Recommended Age Range 16x1.75” Wide, Grippy Tires Removable Steel Training Wheels 18.5"-23" Adjustable Seat Height Rear Coaster Brake

Dart 24” Kids’ Bike 7 Speed (8-11 years) 24x2.10” Wide, Shock-Absorbing Tires Revoshift Twist-Grip Shifter 23.5"-29" Adjustable Seat Height Shimano 7-Speed Easy-Reach V-Brake