The Fitness Mad Universal Training Bar means that you can turn any room into a gym! Attached to a door frame it can be used to perform Pull Ups, Chin Ups and Crunches. By placing it at the bottom of the door frame it can be used as a sit up bar and when on the floor as a multi position push up bar.It comes with a user guide as well as assembly and installation instructions. Limited self-assembly is required.The Fitness Mad Universal Training Bar is designed to be used in doorways in solid walls with sturdy frames. It has been developed for door frame openings between 70cm and 78cm with door frame depths between 11cm and 16cm only. Please note that Fitness Mad do not recommend using this training bar in door frames that do not meet this criteria.