product description 1. Durable Material - Strong and durable, it will not hurt or burn your skin due to friction. Fabric pleats enhance wide support, compared to traditional narrow straps. Yoga slings are undoubtedly a great way to elevate yoga to a certain fitness level. 2. EASY TO USE - No rafters or hardware required, you just slide the two foam wheels on both ends over the door and close it to hold it in place. Since the air stretch swing is not permanently fixed, you can move it to another room or travel. This will be a great help when stretching your back, waist and legs or practicing opening your shoulders 3. Improve flexibility and eliminate stiffness - Door flexibility and stretch leg straps increase your flexibility and stretch yourself easily. Yoga Swing Bands are suitable for children or dance practice backbends, handstands, splits, handstands, abdominal core strength and full body stretches and are also an alternative to relieve shoulder and back pain and stiffness. 4. Numbered Adjustment Bars, No Space Restriction - The waist belt can be adjusted to different length/stretch, you can adjust it according to the number on each side. When fully opened, it covers the hips and most of the back. Waist/leg straps are a great option for letting those giant bouncy balls take up unnecessary space in the room. 5. Wide User - The Backbend Assist Trainer fits comfortably on your spine. It is comfortable and suitable for most yoga practitioners, sports players, gymnasts, fitness enthusiasts and ballet or fitness enthusiasts. Before any exercise, relax your muscles and stretch your body.