Prime Line GD 12192 Heavy Duty Extension Spring - 25 In L - 120 Lb, Steel

For use on sectional, overhead, wood doors 8'W x up to 7'H, 2 panel/4 section; or fiberglass doors 16'W x up to 7'H, 4 section. Use two 120lb springs for each 120lb door (1 on each side). Rated at 10,000 cycles. Includes safety cable, which protects against personal injury and property damage from broken springs. Color-coded and shrink-wrapped for selection ease. Polybagged.