Features: Engineered with heavy duty 300KG load capacity, this porch swing spring hardware features a reinforced safety wire and double rotating buckles for smooth 360 degree rotation, ensuring secure and shock absorbent suspension for hammocks, porch swings, and hanging chairs. Crafted from stainless steel with corrosions resistant coating, the hanging chair hardware set includes a durability spring, spring buckles, and rust proof components designed to withstand outdoor while providing vibrations dampening performances. Ideal for homeowners, outdoor enthusiasts, and fitness practitioners seeking reliabled support for patio swings, garden hammocks, or gym equipment installations up to 700lb. Perfectly suited for ceiling mounted porch swings, horizontal tree log setups, backyard relaxation zones, or indoor spaces requiring stable, adjustable suspension systems. The swing chair hanging set universally design combines industrial strength components with effortless installation, delivering years of maintenance less operations across residential and commercial applications. Specifications: Type: Hammock hanger spring Component: Metal Color: Black Size: Approx.44x4cm/17.32x1.57inch Load bearing: 300KG Package Includes: 1 Set Swing Chair Hanging Set note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.