Teeter Hang Ups E11057 EZ-Up Gravity Boots and Rack

The EZ-Up Inversion System offers a full body stretch and is a great tool for inverted exercises (like crunches, sit-ups and squats). In fact, full range inverted sit-ups are ten times tougher than horizontal sit-ups, with minimal load on the back. The EZ-Up Inversion Rack installs in a door frame, but does not interfere with the function of the door. (Note: The Rack must be installed in a solid wood doorframe constructed according to national building code standards). The Rack takes up no floor space, which is ideal for cramped living quarters. The EZ-Up Inversion System comes with an instructional DVD and an 88-page medical research book on inversion written for nonmedical people.