Triple Diamondâ„¢ Electric Sharpener, three-stage knife sharpener with 100% diamond abrasives and ultra-fine stropping stage, can be used to sharpen all knives, straight edge and serrated, kitchen knives, butcher knives, cleavers, pocket and sporting knives, no special training required, patented triple bevel edge, 5' cord, 125 watt, Assembled in USA, NSF, cETLus