Smith's Sharpeners Adjustable Edge Pro Electric Knife Sharpener. Pro Series. 10 3/4" x 5 1/2" x 4". Gray composition housing with non-slip rubber feet, black soft grip trim, and red dial. Features interlocking wheel technology in both Diamond and Ceramic abrasive materials. Sharpens both sides of the knife blade equally at the same time. Adjustable angle dial allows knives to be sharpened to their original factory angle. Easy to use, just select the angle and sharpen. Reduces the amount of time needed to sharpen the edge. Will not leave a burr on the cutting edge. Works on alloy, carbon, or stainless blades. Serrated blades can be sharpened using the manual sharpening slot on the side of the unit. Will not damage, scratch, or detemper blade. Sharpens kitchen, hunting, pocket, and serrated knives. Includes cleaning brush for interlocking ceramic wheels and instruction booklet.