ALPHA TEK Pocket Hunting Knife Sharpener: Tungsten Carbide Ceramic Rod - For Camping and Outdoors Easy to operate quickly re-sharpens almost any knife blade in seconds. Non-Skid Base for Stable Sharpening. Crossed Carbide Blades Provide Quick Edge Setting. Crossed Ceramic Rods Provide A Razor Sharp Edge Can be hung on a backpack, placed in your pocket, toolbox, tackle box or kitchen. Abrasives: Coarse Carbide and Extra-Fine Ceramic (1,500 Grit)