Electric Sharpener has a two stage sharpening system for long-lasting results. Uses 100% diamond abrasive disks in first stage and flexible stropping disks in the second stage to sharpen straight-edge or serrated knives. Built-in abrasive cleaning mechanism. Precision angle guides. 120V. 81/2"Wx41/2"Dx4"H. 4 lbs. NSF listed.