Heavy Duty Galvanized Springs;Spring is designed to give it that great bounce!;Cold weather crack-resistant;Use a T-Hook for best performance to install springs

• 6.5 Trampoline Springs heavy-duty galvanized-Set of 15 (spring size measures from hook to hook)

6.5 Trampoline Springs heavy-duty galvanized-Set of 15 (spring size measures from hook to hook)Upper Bounce