Feature: Reinforced frame: high carbon steel frame, strong and durable, high strength, good toughness, better deformation resistance. Anti skid, wear-resistant and thickened tires: the contact area is increased, the m-ountain bike has anti-skid lines, the grip is firm, the resistance is small, the riding is stable, and the use without peculiar smell is safer. Brake sensitive and easy to master: front caliper brake, rear holding brake, safety brake setting, brake sensitive, easy to master, more safe to ride. Flash assist wheel: upgrade flash assist wheel, mechanical support assist wheel, make the body more stable，It is safer for the baby to ride. Comfortable saddle: upgraded comfortable saddle, high-quality thickened sponge filling, making the baby sedentary. Closed chain cover design: it can effectively prevent clothes from getting involved in the chain to prevent baby from being hurt. Parameters: Material:  Carbon Steel Weight: about 10500 Package size:110x18x60cm Package content: 1x Kids' Bikes