DESC: CRKT CRSS01 Slide Sharp System Basic Kit - the slide sharp uses a unique system of injection molded nylon guides to hold the knife edge at the specific angle required for optimum sharpening. a hardwood base holds a porcelain sharpening rod. simply insert the rod in the base, slide a return spring over it, select the sharpening guide needed for your knife, and slide on the cap. - Contact Information: http://www.UnbeatableSale.com/info. html, Return and Refunds Policy: http://www.UnbeatableSale.com/shipp info.html