Reliable door anchor: the foam wheel of the door anchor is thick, so it will not damage the door or the paint during use High stability: the door anchor fixing belt of door is made of foam, ABS core and thick nylon fiber. Thanks to the precise seams, these materials have high precision and tear resistance. Versatile door anchor: The Door Anchor provides an ideal training solution for almost any fitness belt, pull up belt, sports belt, tube or sling trainer. Our door anchors make training sport seat belts and hoses easier, comfortable and versatile. The design of the door anchor also allows it to have a soft system, so the door can be handled gently Easy to use fitness accessories: first you need to pass the door anchor of the sports bracelet through the gap of the upper door, close the door and fix the anchor, then pass the sports bracelet through the door. The door anchor has almost no weight, takes up almost no space and can be easily put in any pocket. Perfect fitness accessory at home, in the office or on vacation. Package: Contains 3 door anchor resistance bands. You can exercise at home or in the gym. Training with friends and family is more fun.