This combination knife and scissors sharpener is easy to use, and effectively sharpens both sides of the blade at the same time. Can be used on electrician's scissors, pocket knives, retractable-blade utility knives, razor blade knives, serrated knives and more. Simply draw the sharpener lightly across the blade, and with just three or four strokes the original edge is restored. Built-in finger guard helps to protect your hand. Lightweight, compact size for easy carrying and storage.