Includes one garage door spring, 25 inches long, double loop ends for added security.
Heavy duty extension spring with 1/8 inch galvanized carbon steel aircraft safety cable.
Garage Door Springs rated at 10,000 cycles.

Replacement Spring Door Size:
Wood Door: 9' x 7', 4 panels, 4 sections; 2 springs per door;
Fiberglass Door: 16' x 7', 4 panels, 4 sections. 4 springs on door.

NOTE 1: Safety cables protect against personal injury and property damage from broken springs.
Please always install safety cables with all springs
NOTE 2:
It is always advisable to replace all door springs, even though only one may have broken.