NoteKindly remind that please measure the size of your own door frame before purchase! Pull Up Bar size 72-105cm, suitable for installation distance 75-96cm Soft anti-skid PVC mats on both side to protect the frame from cracking and prevent the damage caused by sudden falling off. The more weight the doorway chin up bars withstand, the more sturdy it is. NO Screws And NO Drilling: You only take minutes to set it up and remove it on the door frame. Just rotate the pole to press against the door frame. Pay attention to DO NOT use the pull up bar doorway on glass door, hollowed door or other fragile door frame. Sturdy Locking Mechanism: Made of stainless steel, will prevent the pull up bar from rotating during use, which make sure the security for yourself. Never worry over-tighten the pull-up bar and do BAD damage to your door frame. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store