SAFETY IS OUR #1 PRIORITY: All our products are tested for safety and durability to meet or exceed all ASTM standards. MODEL COMPATABILITY: SWOPJD15X,SWJD15X.1,SWJDKS14B,SWOP15-X, SWOP15X, SWTC15X, SWTCS1300, SWTCS1400, TJN1500 MATERIAL: Galvanized steel NOTE: Make sure you are buying the right size Genuine Component for your trampoline! Your model number can be located on the underside of your jump mat on a white tag, enclosure net tag, or on your spring pad tag. Check your model compatibility. WARRANTY: Genuine Skywalker Trampoline component, three year limited