Trampoline Part Store 7" Inch Ultra-grade* Trampoline Springs, Quantity of 96, Sam's Club, Sportspower, Jump Zone, Bounce Pro, Skywalker, Academy Sports Trampoline Part Store 7" inch Springs. Replace your Springs with a set of our Made in the USA Springs Highest Quality Trampoline Springs, made for the ULTIMATE, EXTREME BOUNCE!!! Trampoline Part Store Quantity 96-Pack. The Outside Diameter of our Springs are 1.1 inches, we use 8-gauge high tenacity Galvanized Steel Music wire, The Wire Diameter of our Springs is 0.125 of an inch thick (1/8 inch). Conical, Zinc plated, Heat Tempered and have a tapered end for extra strength Trampoline Part Store You say jump, we say how high? 7" inch Springs for Trampolines, can also be used for an Extension Spring, Farming, Ranching, Machinery, Maintenance & Home Repairs