Upgrade Your Workout RoutineThe Ally Peaks pull up assist bands set was designed by an NASM-CES Strength Coach.It is what you need to enjoy extra support and resistance during intensive workouts and transform your fitness routine into a real challenge! It can help whether you are a fitness enthusiast or a beginner. (USA Original Patent) Built to LastWhat makes the Ally Peaks pull up bands truly distinctive is the heavy-duty design that comprises a military-grade nylon strap that safety tested for up to 700 lbs and is built to last a lifetime. Unlike other bands, all parts of ours are reinforced with metal buckles which are more reliable and durable than partially using plastic. Adjustable DesignThe pull up assist bands are removable.Eleven levels of resistance provide up to 410 lbs.Thus, you can change the resistance bands or use both and adjust the length of the nylon strap according to your body height to precisely adjust the assistance depending on your needs, fitness le