Vincilee spring set includes 15pcs 5.5 inch springs and 1 t-hook, springs are constructed with high quality galvanized steel. You can use it to assemble your trampoline,slightly curved shape, more durable and higher tensile strength than those shaped straight , bringing great bounce to your trampoline.

Features:
Heavy duty galvanized steel spring
Easy to assemble, very safe
High tensile strength and high strength
Cold resistant, crack resistant, weather resistant and rust resistant

package:
15 x 5.5" (14cm) spring +1 T-hook