They do what they show, I got them for pull ups because I had tendonitis in my arms. In the end, it turned out that a simple 8 figure strap did the job. Personally, it didn't suit me because I was doing superset pull ups to dips, where in the second exercise on the dips, the blue hooks were sticking to me (many attempts and no solution found, you have to take them off if you want to do dips comfortably). Quality material, suitable for deadlifts, lat pull ups on machines, etc., but for bodyweight exercises they help moderately.