The spring helps relieve stress from impacts, providing a more comfortable, softer feel and increasing the lifespan of your hammock. It is compatible with most punch bags, hanging chairs, egg chairs, and wicker baskets. Zinc plated with a clear coating for added weather resistance. Sturdy steel construction. Spring rated for over 700 lb capacity. Specification: Material: Metal Weight: 200g Size: As shown Package includes: Choice 1: 1 x Swing Hammock Chair Spring Choice 2: 2 x Swing Hammock Chair Springs Our products are made with high-quality materials and designed to provide a reliable user experience. Please refer to the product title and description for detailed information on features and specifications. Ensure you check the size and dimensions before purchasing to confirm suitability. For any questions, feel free to reach out for assistance.