Dethmers Manufacturing Company Demco Safety Cable Extensions 12in. At Demco we know that each situation is just as unique as its owners That's why we work to provide solutions to each situation. Should the need arise Demco provides safety cable extensions in two different lengths. Each extension is rated at 7000 lbs. and when used in tandem provides 14000 lbs. of strength. Sold per pair. Features of Dethmers Manufacturing Company 9523064 Demco Safety Cable Extensions 12in Safety Cable Extension is strength tested at 7000 lbs. Cables are rated at 14000 lbs. when used in tandem Sold per pair Length: 12" Package Contents: Dethmers Manufacturing Company 9523064 Demco Safety Cable Extensions 12in Dethmers Manufacturing Company 9523064: Demco Safety Cable Extensions 12in