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 * Carded * 110 lbs spring rating * Fits doors 8 ft. wide, 6 ft. 6 in. inch high with 2 panels What"s In The Box: * Stanley Hardware 730610 110-lb. Garage Door Extension Spring