Spyderco medium grit bench stone (600 jis). 2x8".
Ultra hard alumina ceramic bench stone. Doesn't require oil or water. Its broad and flat surface which ideal for sharpening woodworking tools and all types of knives.
Easily cleaned with household cleanser, a scouring pad, and water.
Comes in a dark blue polymer case with non-skid rubber feet.
Made in USA.