AW 5 1/2" Inch Trampoline Springs Heavy Duty Galvanized Steel High Tensile Replacement Set Kit (Pack of 20) 20pcs heavy duty galvanized steel trampoline springs, designed for bringing great bounce to your trampoline Overall Dimension (LxWxH): 5 1/2" x 7/8" x 7/8" (14 x 2.2 x 2.2 cm); Wire Dia.: 1/8" (3 mm) Slightly curved shape, more durable and higher tensile strength than those shaped straight; Hooks for firm hold, no fear about springs coming off when jumping Cold weather crack-resistant, weather resistant and anti-rust Perfect replacement to rusted, worn out and dangerous springs of trampoline; Used with T-hook (Not Included) for easy installation