Double end valve wheel wrenches grip the rims of valve handwheels for secure leverage to open and close the valve. - They reduce the amount of force needed to open or close valves that have a handwheel. Head Size / 1 in, 1 5/16 in Material / Alloy Steel Finish / Black Oxide Overall Length / 17 1/2 in Corrosion Resistant / Yes Weight / 4.45 lb