The slings can be attached to any pullup bar of any size due to the simple cinching connection method. This protects the paint on racks and pullup bars due to not needing to use metal carabiners. The length allows plenty of room for one’s head to stay clear of the location where attached. Designed with comfort in mind, the 8" loop support disperses pressure around the arm while hanging in place. Simply attach the Slings to your desired location, slide your arms into the slings close to your arm pits, bring your hands around and grab the straps leading up to the cinching hook.