1Using high strength polyester with better wear resistance and load bearing. 2Alloy steel material, high tension, good fastness, force can be evenly dispersed weight. 3Electrophoresis black treatment, strong anti-corrosion, smooth and durable, can be adjusted freely. 4Adopts imported process machine sewing, fine thread, small pin hole, high density. 5Suitable for driving, rock climbing, hiking, mountaineering, working, rescuing. etc.