Let your child roam the park with the F-12 (12 ") bike designed for hours of fun! Features : -The F-12 represents the 12 inch wheels, perfect for beginners -This bike is a great choice for kids 1 to 4 years old or between 28 and 38 inches -The F-12 has stabilizing wheels, so don't worry if they are just learning to ride. As soon as they learn; you can easily remove them -Single speed bike, which makes it very resistant and requires very little maintenance -The coaster brake allows the child to stop confidently by pressing the pedals backwards -Height adjustable seat up to 5" higher