Trampoline missing the good bounce??
5" Trampoline Springs, heavy-duty galvanized. 8.Bring back the fun and jumping joy by replacing your deformed and/or missing Trampoline springs with these "Upper Bounce" Heavy-Duty Galvanized Springs which are especially designed to increase bounce!.5" Trampoline Springs, heavy-duty galvanized, Set of 15 (spring size measures from hook to hook) 8.