widely used. The spring capacity is 300 kg. Fits almost all punching bags, hanging chairs, cocoons, egg chairs, wicker baskets. Springs help relieve impact pressure, provide a more comfortable and softer feel and extend the life of the hammock in addition to surface mounting. High quality materials. The spring is made of galvanized iron. Better corrosion resistance, less rust and more durable. Big show. You can use it with confidence. Easy to assemble. Porch swing springs with hooks on both ends make it easy to attach to your hammock without the use of tools or complicated operations. feature Strong steel construction. Galvanized and clear coated for longer life. Springs help relieve shock pressure, providing a more comfortable feel and extending the life of the hammock. Spring rating of over 300kg reduces noise, stress and vibration. Suitable for garden swings, hanging baskets and hangers. Specification Material : Galvanized Iron Color: Silver Length 108mm (approx) Wire Diameter: approx 7mm Weight: 200g/unit Notes Remember to check the condition of the hammock extension springs before use. Package contents< /p> 2 x Hammock Springs