Our cute 12" children's bike will let your little one enjoy riding. This kid's bike is designed with adjustable handlebar(25.5"-28")and seat height(17.5"-21.5"), which is perfectly suitable for 3-4 years old kids or toddlers with 31.5"-41.5" height. Meanwhile, 2 anti-slip and shock-absorbing wheels can move safely and smoothly on flat surfaces. Our padded saddle will make your kids feel comfortable when sitting on it even after long-term riding. Different from others, ours features 85% pre-assembled design to save your energy and time. Besides, there is a hand brake(shorter distance for kids' small hands) and a coaster brake(pedal backwards to instantly stop) for your kids to stop the bicycle safely. Note: Measure kid's INSEAM and compare with SADDLE HEIGHT to check if the rider can touch the ground.