Fine for polishing the knife and for quick touch-ups for an already sharp knife. patented edge grip feature allows sharpening on the edge of the table or counter top- prevents the tip of larger knives from dragging over the surface of the counter. pocket pal detachable knife sharpener, super light weight, easy to take everwhere!sharpens blunt kitchen knives in just a few strokes or your money back. this great sharpener is so effective you will literally have a razor sharp knife in just a few strokes!2 stage sharpening system sharpens the bluntest kitchen knife in seconds. the tungsten carbide blades will sharpen the bluntest of knives. then the ceramic rods will hone the knife to the sharpest it will have ever been! knives that are fairly sharp can be sharpened using the ceramic rods in seconds