This item cannot be shipped to the following state(s): GU,PR,VI
This heavy-duty extension spring features double loop ends for extra durability. Includes a 1/8 In. galvanized carbon steel aircraft cable, which installs through the spring to prevent injury in case of breakage. Two springs will lift a door weighing 110 lbs. Will replace most spring configurations on residential doors that are no higher than 7 ft.