Klein Tools 44150 Multi-Purpose Sharpening Steel Overall size: 5-Inch x 7/8-Inch x 1/4-Inch Tungsten-carbide bonded to fine, medium, and rough sharpening surfaces, effectively sharpens any knife Leather-sheath handle folds out of the way for use as a sharpener, provides a convenient way to hold tool when used as a chisel or other tool Leather lanyard holds tool in sheath and secures it to belt or ring Klein offers a lifetime warranty on material defects and workmanship for the normal life of the product.