💪A single piece of solid steel to ensure max strength and offer more stability & security compared with other flimsy chin up bars on the market, support up to 300 lbs. 💪Please measure the installation distance before purchase: Our Pull Up bar on this door is suitable for door frame / wall thickness 3.94-9.45inch/10-24cm, inner width 22.44-34.65inch/ 57-88cm, outer width 37.4inch/95cm or more. 💪4 non-slip grip positions to comfortably perform wide, narrow and neutral-grip exercise. 💪Turns any doorway into a personal gym.It can be used as a doorway pull up bar or turned over to perform situps, pushups, and dips, target multiple upper body & core muscles.