PROIRON Strength Training Chin up Bar without Screws - Max Load 200kg 1. Be sure to check whether the pull-up bar and your door frame are in intact condition before use. 2. Please make sure the components are firmly connected and won’t loosen before use to avoid damage to the accessories and personal injuries 3. Please lay a sufficiently safe mat or other safety protection equipment on the ground of the exercise area. And strictly follow the instructions before use. 4. Before using the pull-up bar, please confirm whether the user exceeds the safe bearing range of it. (maximum weight: 200kg). 5. The product is intended for home exercises only, thus any dangerous movement like swinging is prohibited to prevent personal injuries.