Gymax 2PCS 7 Inch Rustproof Replacement Trampoline Elasticity Springs Galvanized SteelMake your trampoline revitalize with our trampoline springs. Made of heavy duty and rustproof galvanized steel, the trampoline springs provide you with a safe jumping experience and could withstand the everyday beating that trampoline springs receive. Besides, more coils provide better bounce, allowing you and your little ones to jump higher. Due to the curved angle design and T hook spring pull tool, replacement is quite easy for you. Features: