Chef'sChoice 310 Diamond Hone Multistage Electric Knife Sharpener for Kitchen Household Sport and Pocket Knives Diamond Abrasives Made in USA, White Diamond abrasives hone blades to razor sharpness Magnetic guides keep blades at proper angle, eliminating guesswork Two-step process sharpens, then hones entire blade length Works on kitchen, pocket, and filet knives Suction-cup feet hold the compact unit in place on countertop