1. Safety: To hang a swing without damaging the tree. To prevent straps from loosening while swinging, we've equipped our carabiners with a high-performance screw lock. Each strap has extra stitching on the metal ring webbing loops to ensure stable and reliable fastening without tearing at the seams. Prevent straps from falling during swinging. 2. High-Quality Material: Strapping material: Polyester fabric, D-ring and D-type hook material: High-quality stainless steel, Size: 150 * 5 * 0.3 cm, Product collocation: Belt 2 + Storage bag 1 + Strong D-ring 2 + Durable fabric 2 sheets 3. Tree Protection: These swing hanging kits won't damage beautiful trees. They are equipped with a tree protection net so that the shoulder straps and trees won't be worn and damaged when shaken. 4. Superior Performance: Product selection of nylon rope, high waterproof index, wear-resistant and durable, exquisite workmanship, detailed orientation, maximum load: 0-550kg. 5. Easy to Use: Tree swing hanging kit for all types of swings. Use it to hang all kinds of swings, patio swings, porch swings, hanging chairs, baby carrier swings, porch swings and much more. Both straps can be installed in under 5 minutes. No drilling or tools required. Straps also work with all sizes and fits of hammocks.