Heavy LoadSturdy steel construction. The suspension spring is strong and can support a weight of up to 551 lbs. Count on these high-quality swing hangers to safely support children and adults alike. Optimal Shock AbsorptionThe hammock spring absorbs shock from your hammock movement to help relieve shock or vibration which provides comfortable use and increases the life of the hammock. Simple AssemblyWith hooks on both ends, the swing spring is easily connected to your hammock chair without using any tools or complicated operation. The innovative design makes our hooks more flexible and can be used more widely. Corrosion resistance and long service lifeMade of high quality stainless steel, solid and durable, no rust, corrosion resistance, high hardness. The zinc plating on the hardened steel improves the weather resistance and life of the hook. Versatile Hanging HookThe hook spring is designed for hanging hammocks, porch swings, swing chairs, punching bags or other heavy items. Idea hook to mount your hanging hammock or swing chair. Product Hammock Spring --- Perfect for mounting your hanging hammock or swing chair Robust steel construction Maximum load capacity at 250 kg. designed for hanging punching bags, hammocks, swings, hanging chairs, etc. Corrosion resistance and strong enough All made of heavy duty stainless steel with good corrosion resistance and toughness. Efficient buffering The spring helps relieve shock stress, provides a more comfortable feel, and will increase the life of your hammock. Wide range of uses Perfect for hammocks, porch swings, swing chairs, punching bags, outdoor swings, aerial yoga, etc. Specification: Color: silver Material: stainless steel Quantity: 2 PCS Features: Hammock Accessories, Durable, Weather Resistance Wire Diameter: 7mm/0.3"(Approx.) Length: 108mm / 4.25"(Approx.) Weight capacity: 250 kg (551 lbs) Package includes:2*Hanging Hook