Carbide Knife Sharpeners are works on knives, axes, hoes and serrated edges. It uses no oils or stones. These are full length safety guard protects fingers with white handle. It can be cleaned in dishwasher. It is designed to use flat on the edge of a table, bench, stump or a rock by drawing the knife blade. These features include kitchen shear sharpener, easy-grip handle and slip-resistant feet. They also have polypropylene handle and feet. It has ceramic and steel sharpeners.