Sufficient Quantity: sufficient quantity is enough to meet your daily using and replacing needs, protect the trampoline structure and prolong the service life of the trampoline. Sturdy Material: the trampoline spring is not easy to rust, wear or tear, prevents rust and fading caused by oxidation, and maintains the elasticity of the trampoline. Quality and Serviceable: trampoline springs are in the middle and narrower at both ends, which can reduce resistance, have stronger tensile strength, low noise, good stretchability, will not be easily deformed by , provide elasticity for your trampoline, so you can adjust the stretch in time. Compatible Size: compatible with most sizes of trampolines, trampoline springs are designed to replace your rusty, worn out. Colour:Silver Material:Stainless steel Package Contents: 20 * Trampoline Spring Only the above package content, other products are not included. Note: Light reflection 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 +/- 1-3cm.