Giantex 7'' Heavy-Duty Galvanized Trampoline SpringsOur trampoline springs will not only improve the quality of your trampoline but also the quality of your fun! These heavy duty galvanized steel trampoline springs are designed with an advanced tension mechanism for better elasticity and stretching ability. The rust proof design will be sure to withstand long term use. This set will be a good choice to replace your trampoline's rusted, worn out, and dangerous springs, thus giving you years of jumping