This item cannot be shipped to the following state(s): GU,PR,VI
This sectional door extension spring has double loop ends for extra durability. It can replace most all spring configurations on residential doors that are no higher than 7 feet. Includes a 1/8 in. galvanized carbon steel aircraft cable that is installed through springs to prevent injury in case of breakage. 2 springs will lift a door weighing 110 pounds.