Firestone ElectricDiamond Sharpener.Measures 5 3/4" x 4 3/4" x 3 3/8".Automatically positions andsharpens both sides of bladesimultaneously with diamondenhanced ceramic wheels. Ideal forhunting, fillet, pocket, utility,kitchen and serrated knives.FS-1901 Black plastic case with red trim. (USA)