Tube or strike-free Leverage Wrenches are manufactured from steel bar. These wrenches are available in fractional sizes from 1-1/16 in through 3-1/8 in. They are in industrial black finish. These strike-free wrenches are designed for optimum safety in a wide variety of heavy duty work where striking face box wrenches cannot be used and where cheater bars should not be used. These are available in two and three-foot handle sizes with 15 sizes of interchangeable 15 deg angled 12-point box wrench openings. Martin Leverage Wrench, Tube/Strike-Free, Measurement System: Imperial, Box End Wrench, 2-1/2 in Wrench Opening, 12 Points, 15 deg Offset, Straight Handle, 36 in Handle, Steel, Black Oxide