Sportspower 5.5" C-Crimped Galvanized Spring for Model MSC-4168-JKB

• Fits Trampoline Model # MSC-4168-JKB

• 12 springs to complete trampoline

• Key #J in manual

1. SPRING QUANTITY: COUNT HOW MANY SPRING HOLES IN THE FRAME FOR MORE ACCURACY. (Count how many springs you have, in good condition, recoiled and with lots of tension. You may be missing springs or want more tension)
2. SPRING LENGTH: TAKE A SPRING OFF THE TRAMPOLINE & MEASURE IT; INCLUDING THE HOOKS, TO DETERMINE THE CORRECT LENGTH. (The spring coils must be fully recoiled to obtain the proper length.)