Package: 10 springs + 1 hook Material: Made of manganese 65, wire diameter 3.2 mm, new design of the life drum, good flexibility, uniform acceptance, more solid, precision forging, smooth surface without burr. Installation: Simple and easy to install, one hook is enough to perfectly replace the old trampoline spring, which makes the trampoline a new look, safer and stronger. Quality Service: If you are not satisfied with the spring, please contact us at any time,
