Replace those worn out trampoline springs with BRAND NEW 7.0"" trampoline springs, and bring back the bounce to your tired old trampoline. Constructed of High Quality Rust-Free galvanized wire, for years of high jumping use! Be sure to measure your old springs to make sure that these are the correct replacements. Heavy Duty galvanized wire. Rust-free for years of use. Bring back the bounce in your tired old trampoline. Length: 7.0"". Quantity: 44 Springs. Measure the entire length of your old springs from end to end.