With strong elastic straps, the pull-up resistance bands can withstand Above 70KG The PU pedal is flexible and durable Adjustable Resistance -- The resistance straps are connected by spring snap hooks, which make them very easy to detach or install to fit your training purpose. The length of the nylon straps can be adjusted in a few seconds to make the chin up assistancebands ready for your pull-up or chin-up Ideal for Anyone -- No matter you're a fitness beginner or athletes, trainers, the pull up bar will help you to improve performance, mobility, flexibility, and strength step by step without getting hurt Multi Functional -- The benefit of pull up assist bands will not limited to arm, back, chest and other upper limb muscles, you can also use it to improve leg strength. You can practice by either standing or kneel on the assist band or use the pull-upassist bands for push-up as well