Make knife sharpening more efficient with Smith's 4" Arkansas Stone Knife Sharpener! This sharpener removes modest amounts of metal as it polishes the cutting edge, unlike many other sharpeners that can only do one at a time. Its smaller size is easy to transport and store. The natural Arkansas stone is mounted on a plastic base and has a plastic lid to protect the stone when not in use. During use, the plastic lid can be inserted into the bottom of the stone base to extend the height of the base and make sharpening your knife easier and safer. The user's fingers grip lower on the base and remove any chance of cutting your fingers when pulling or pushing the knife's cutting edge across the sharpening surface. After each use, clean the Arkansas stone by scrubbing vigorously with water, liquid soap, and a stiff nylon brush to keep the pores free of stone and metal particles.