Versatile Use: The swing spring is specially designed for hanging swing benches, hanging chairs, hammocks or hammocks and can enjoy outdoor leisure. Safe, smooth and easy to install Elastic mechanism: The unique spring shape and high-quality components are symmetrically arranged in a stable housing, ensuring hours of quiet movement. Color: silver + green Size: 22 * 4.4 cm Material: spring steel Package Contents: 2 * Spring Hook Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.