Spyderco Bench Stone Sharpener with Storage Case Medium Made of highest quality material Manufacturer: Spyderco, Inc. Spyderco bench stone sharpener with storage case medium Large 2 -Inch X8 -Inch ceramic stone effectively sharpens large knives, planes, and other tools Medium grit cuts aggressively and is ideal for sharpening very dull knives or re-profiling the edge bevel of a knife Includes polymer case with non-skid rubber feet Easily cleaned with ordinary kitchen cleanser and a plastic scouring pad Made in USA