The spring is hard and elastic, adopts high-quality technology, has strong elasticity and abrasion resistance, and is not easy to collapse under high-strength tension, which can meet daily needs Description: Design: The wind rope for buckle contains a highly elastic spring and two U-shaped hooks, which can be disassembled freely, satisfying the fun of DIY U-shaped hanging head prevents the rope and hook from falling off. The back hook can hold the spring firmly and will not out, so it is safe and firm Material: High-quality aluminum alloy material with high toughness and elasticity, which can effectively tighten and stretch