The Big mike’s pull-up assistant is designed to give you an adjustable amount of lift so you can work your way up to doing more unassisted chin-ups and pull-ups. Versatile design You could attach it to literally any sturdy bar, pull up bar or chin up bar at home, gym, or even at the park. Provides very quick set up and removal thanks to the clip-on buckle design. Built with a heavy duty steel buckle that will allow you to adjust height to achieve different work outs. . Amateur / athlete level With its Triple latex tubes that are adjustable to different levels of Resistance you can build strength if you were just introduced to pull-ups or Improve your technique to master muscle ups or simply to improve from doing one pull up to many pull ups or dips. Non-slip foot surface The anti-slip foot stirrup feature keeps you secure and stable and gives you the confidence needed to continue building strength, and perfect technique to achieve unassisted work outs.