The low-step frame is what sets this 12-in kids bike apart because the dropped top tube lets a 3 to 4 year old mount and dismount without tipping the bike over. It fits riders 31.5 in to 41.3 in tall with a saddle that adjusts from 19 in to 20.5 in and a seat rated to 100 lb Removable training wheels steady early rides and a hand brake plus a rear coaster brake cover stopping. Anti-slip pneumatic tires hold on wet concrete and loose gravel. The bike arrives 85 percent pre-assembled with a bell reflectors and a full chain guard in place.