General description Durable steel construction with zinc-plated and clear coated finish for added weather resistance. This heavy-duty spring is designed to support over 700 lbs, making it very durable and long-lasting. It helps relieve impact stress, providing a more comfortable and soft feel while increasing the lifespan of your hammock and mounting surface. Technical specifications Spring capacity: over 700 lbs Wire diameter: 7 mm (0.3") Length: 108 mm (4.25") Compatibility and accessories Compatible with almost all punching bags, hanging chairs, cocoons, egg chairs, wicker chairs, etc. Package contents: 2 carabiners