[Pull Up Assistance Bands Set] Assisted pull up bands made of reinforced gourd hook paired with adjustable height assistance bands, 70-280 lbs/ 4 optional power rebound assisted bands, pedals to support smooth, safe use of both feet/knees, beginners who want to do complete pull-up workouts & intermediate enthusiasts who love fitness & want to step up the intensity of their workout. Suggestion: use 4 elastic assistance bands when start with pull up assistance bands. [COFOF Pull Up Assistance Bands] Gourd hook connection setup eliminates disadvantage of adjustable assist bands sliding when focus on doing pull up, high quality & easy to install adjust. Assist bands wrapped in textile fabric slows down the oxidization of latex tubing, prolongs the service life 5 protects sportsman who are allergic to latex. Widened double EVA base plate made of textile on the inside connected at top by double D-buckle composition, skin-friendly & stable in use pull up assist. [Adjust Pull Up Assist]