Smith's Medium Arkansas Stone is the best general purpose sharpener of all the natural Arkansas Stones. This 6" Medium Arkansas Stone is mounted on a molded plastic base to make sharpening safe and easy. It is excellent for sharpening pocket knives hunting and fishing knives kitchen knives and tools of all sizes large or small. 6" Medium Arkansas Stone Sharpens Larger Knives and Tools Plastic Lid protects the stone Non-slip rubber feet Stone Size: 6" x 1 5/8" x 3/8" / Medium Arkansas Grit: 600 Grit