Spyderco Golden Stone Sharpener. Holding the stone vertically (foot-side-down on a table top) the stone tilts side-to-side lifting one edge up and making a 20 sharpening angle (40 total angle) for knife blades. Both of the stones sides are elliptical edge with a large radius to sharpen PlainEdges and a smaller radius for SpyderEdges (serrations). Held vertically on its side it creates a 12.5 angle for scissors and a seam/channel running the stones length hones pointed objects. Suede carry case doubles as a non-skid counter top pad for tabletop use. Specifications for Spyderco Golden Stone Sharpener: Manufacturer: Spyderco Color: Brown Additional Features: Serrated Edges Included Accessories: Leather Case Condition: New Package Contents: Spyderco Golden Stone Sharpener The Spyderco Golden Stone is a quality addition to the Spyderco lineup. For more great deals on Knife Sharpeners by Spyderco please browse our Spyderco Knife Accessories page. Shaped like a ducks foot the Golden Stone is a compact versatile sharpening device that automatically sets the proper sharpening angle. Hold it by the narrow end and place the scalloped end on a flat surface. Tilting the stone from side to side creates a 20-degree sharpening angle on the outer edges of the stone. All you have to do is keep the plane of your blade vertical and draw the edge alternately along each side to sharpen. Other features allow easy sharpening of scissors serrated edges and pointed objects and its suede carry case also acts as a non-slip tabletop pad. The Golden Stone is easily cleaned with household cleanser a scouring pad and water. Made in USA.