[DETAIL] GSD Trampoline Springs, Trampoline Replacement Galvanized Steel Springs Trampoline springs?are one of the most popular products offered by Fun Spot. These top quality trampoline springs are universal, making them compatible with all trampoline brands. Any springs which are over-stretched, loose or have damaged hooks should be replaced immediately. Our trampoline springs are manufactured from galvanized wire making them superior to the imported chrome springs commonly offered by most trampoline suppliers. the lenght : 87mm---218mm if you need more type spring, please click the photo link All Fun Spot trampoline springs are warranted for 2-years against defects in materials and workmanship. (As is common for this market, warranty does not cover damage due to excessive weight. Short springs will likely be damaged by excess weight. Short spring trampolines can be upgraded to longer springs by replacing the mat and all springs simultaneously. Contact us for details.) Should I replace my springs? Replace trampoline springs if the coil does not return to its normal shape when removed from the frame. Replace trampoline springs if the spring's hook is deformed. If adult jumpers bottom out or nearly bottom out when bouncing this indicates many trampoline springs need replacing. To test all trampoline springs, clench the end of the coil in your fist and shake it. After shaking several trampoline springs you will notice a variance in the amount of coil tension. Replace those trampoline springs that are noticeably loose. Failing to replace defective trampoline springs make spring failure contagious as neighboring trampoline springs are forced to carry increased load. Trampoline Springs are a Fun Spot specialty. Top quality trampoline springs are available for all trampoline brands. Our heavy-duty trampoline springs are made from galvanized wire that outlast imported chrome trampoline springs. [ATTRIBUTES] - Hign-concerned Chemical: None - Training Site: Muscle Relex Apparatus - is_customized: Yes - Hign-concerned Chemical: None - Training Site: Muscle Relex Apparatus - is_customized: Yes - Model Number: trampoline springs - Size: 87mm/100mm - Style: Foldable - Department Name: Unisex - Type of sports: Balance Training - Origin: Mainland China - name: trampoline springs - material: galvanized steel - size: 87mm/100mm - suit for: trampoline - item: replace spring