●20 in ●Suitable for Heights: 53.1 - 63.0 inches (135 - 160 ●Weight: 11.0 lbs ( ●Material: Frame: Steel, Wheel: High strength polypropylene, Tires: Rubber (non-puncture specification) ●Easy assembly ●Stand included ●(Note) Please match the "mai" seal of the saddle and the main body frame and use it toward the direction of your progress. It can cause unexpected accidents because of the pedal loosening and unbalanced