The Thera-Loop Non-slip Door Anchor increases the variety of tubing and banding exercises you can do at home. It provides a full body work out by being able to exercise and stretch your upper and lower body. Use it in combination with just about any size of tubing or band within any door frame. You can easily assemble this exercise tool in any home as it will not slip up or down and can be adjusted from to any height. It also protects the resistance tubing or band from being damaged. Comes in a pack of 50. Resistance bands and tubing sold separately.