Sufficient Quantity: This quantity is sufficient to meet your daily usage and replacement needs, helping to protect the trampoline structure and extend its service life. Sturdy Material: The trampoline spring is resistant to rust, wear, and tear, helping prevent rust and fading caused by oxidation while maintaining the trampoline's elasticity. Quality and Serviceable: Trampoline springs are narrower at both ends and wider in the middle, designed to reduce resistance, offer high tensile strength, produce low noise, and provide excellent stretchability. They resist deformation and deliver reliable elasticity, allowing for timely tension adjustment. Compatible Size: Compatible with most trampoline sizes, these springs are designed to replace rusty or worn-out springs. Color: Silver Material: Stainless Steel Package Contents: 20 x Trampoline Spring Note: The package includes only the items listed above; other products are not included. Note: Due to light reflection and differences in display screens, the color in the image may vary slightly from the actual item. Measurement error allowance is +/- 1-3 cm.