Safety: Hang the swing without damaging the tree. To prevent the straps from loosening when swinging, we have equipped the carabiner with a high-performance screw cap. Each strap has additional seams on the metal loop fabric loops to ensure a stable andsecure connection without tearing at the seams. High quality material: Strap material: polyester fabric, D-ring and D-hook material: high quality stainless steel, size: 150 * 5 * 0.3 cm, product matching: belt 2 + storage bag 1 + strong D-ring 2 + 2 pieces of wear-resistant cloth Tree Protection: These swing suspension kits will not damage beautiful trees. They come with tree protection nets so they won't fray and damage the straps and trees when shaken. Superior performance: Nylon rope is used for the product, with high waterproof index, wear-resistant and durable, exquisite workmanship, meticulous positioning, maximum load-bearing: 0-550kg. Easy to use: Tree swing suspension kit for all types of swings. Use it to hang all kinds of swings, swings on patios, swings on balconies, hanging chairs, swings with baby carriers, swings on balconies and more. Both straps can be installed in less than 5 minutes. No drilling or tools required. The shoulder straps also work with any size and fit hammock.