Gatco Edgemate Knife Sharpening System. The system contains a GATCO® exclusive knife clamp/angle guide with six sharpening angles to assure factory-exact edge including serrated edges, extra screws for clamp, coarse sharpening hone, medium sharpening hone, fine sharpening hone, 2 oz. scientifically formulated honing oil and a custom composition case with instructions permanently affixed to the inside of the lid. Sharpens all standard edge blades! Easy to use! Hang packaged.Weight: 1.7lbs