Robust And Safe: This Rod Is Made Of Durable Steel And Won't Break When Used In Heavy Weights. With 3 Sections Of Non-Slip Rubber Handles The Door Frame Will Not Be Damaged After Installation. It Is Sturdy Enough To Withstand a User Weight Of 130 Kg And Can Perform Excellent Pull-Ups And Sit-Ups. Easy To Install: Super Easy To Install You Can Do It In Minutes! All You Need Is a Door Frame So You Can Install This Bar Immediately And Exercise! All You Have To Do Is Rotate Each Side In Alternating Directions And The Crossbars Will Extend On Both Sides Of The Door Frame. Rotate Until You Cannot Rotate To Make Sure It Is Fixed To Both Walls. Manufacturered by BENGKUI. This Product Has Two Sizes s: 60-100cm m: 80-130cm. Before Purchasing Please Measure The Installation Position And Choose The Appropriate Size. This Product Comes With Comfortable Fitness Gloves. Safe and slip resistant bid farewell to cocoons and bubbles. You can use wide narrow or parallel handles for a variety of pull-up exercises. Unlike a door stop your movement is not restricted by the door frame but provides you with a permanent and stable structure