widely used. The capacity of the spring is 300 kg. Fits almost any punching bag, hanging chair, cocoon, egg chair, wicker basket.Springs help relieve impact pressure, provide a more comfortable and softer feel, and extend the life of the hammock in addition to the mounting surface.High-quality materials. The spring is made of galvanized iron. Higher corrosion resistance, less rust and more durable. Great show. You can use it with confidence.Easy to assemble. Porch swivel springs with hooks at both ends make it easy to attach to your hammock without the use of tools or complicated operations.featureSturdy steel construction. Galvanized and clear coated for longer life.Springs help relieve pressure from shocks, providing a more comfortable feel and extending the life of the hammock.Rated spring capacity in excess of 300kg reduces noise, stress and vibration.Suitable for garden swings, hanging baskets and hangers.SpecificationMaterial: Galvanized IronColor: silverLength 108 mm (approx.)Wire diameter: about 7mmWeight: 200g/unitnotesRemember to check the condition of the hammock extension springs before use.Package Contents2 x Hammock Springs