CRKT SS01 Slide Sharp Knife Sharpener.   The CRKT Slide Sharp Knife Sharpener uses injection molded nylon guides to hold the knife edge at the optimum sharpening angle. Includes 15 and 20 degree sharpening guides, a coarse and a fine grit porcelain sharpening rod, return springs, a hardwood base, and rod cap. The components fit into the storage case included.