With the Perfect Fitness Multi Gym you put your entire upper body to work. The chin-up bar is easily and securely attached between your door post. Thanks to the doorpost protectors you not only prevent damage to your posts, but the rod is even more firmly in place. Rod placed? First work a number of sets of chin-ups and pull-ups sets. When you have energy left, place the Multi Gym on the floor. The raised surface ensures that you can vary with the printing and dipping.