This three sided sharpening steel has two diamond and one ceramic side. Coarse diamond (325 mesh), Fine diamond (600 mesh) and Ceramic for polishing.
The edges (or corners)also have three distinct sizes for use on serrated knives, reverse curve knives and gouge chisels. (1.6mm, 3.18mm, 4.78mm) So, you actually have six sharpening surfaces available to the user.
Unbreakable rod is 6 in. long with on overall length of 10-1/2 inches.
Made in the U.S.A.