Features: * Oil tempered steel safety extension spring is for use on most overhead sectional wood and steel garage doors * Includes a safety cable to help prevent personal injury or property damage if extension spring breaks * Double looped spring ends provide added protection * Tested for 10,000 open/close cycles to ensure years of carefree operation * Spring loops are color coded in accordance with DASMA specifications * Durable black enamel finish helps protect spring from corrosion * 25 inch length * 160 lbs. spring rating * Fits doors 9 ft. wide x 7 ft. high with 4 panels What"s In The Box: * Stanley Hardware 730660 160-Lb. Garage Door Extension Spring