4pcs Awning Attachment Set Tension Spring, Alloy Spring Awning Spring Buckle, Heavy Duty Sun Shade Sail Fixing Kit. The tension spring is made of high-strength stainless steel with strong elasticity, thick and wear-resistant material, excellent rust resistance, high toughness, and does not deform or collapse under high tensile strength. Exquisite design features a double buckle that fastens securely on both sides. Stainless steel springs provide superior stretchability and elasticity. The thickened spring buckle has a compact design with powerful functionality and is easy to carry. The awning rope tensioner includes a double buckle system that tightens the spring to firmly secure your awning and provides high tensile strength to help prevent damage in strong winds. Easy to install: connect one end of the spring buckle to the ground nail and the other end to the tent or shade rope. Simple operation allows for quick and easy connection and repair, enabling fast installation and removal, ideal for self-assembly. Suitable for camping, travel, picnics, beaches, hiking, hunting, fishing, tents, awnings, and other outdoor applications.