Material: High-strength new carbon steel frame adopts thickened frame wall which has stronger bearing capacity full material consumption stable body safe and sturdy. Tire: wear-resistant anti-skid tires special pattern of tires using thick material wear-resistant anti-skid baby riding safer! Manufacturered by Axdwfd. Brake: The front brake adopts the clamp brake the rear brake adopts the brake technology and the brake is timely and safe. Training wheel: new guard wheel Q235 steel material high strength better stability. This sporty bike for boys and girls comes with training wheels and a quick release seatpost which makes it easy to adjust the height of the seat .