M130 Professional Sharpening Station: Three-stage electric knife sharpener Stage 1, using 100% diamond abrasives, sharpens the edge Stage 2 is a super-hardened miniature steel that develops a shaving sharp edge with ultra-sharp microscopic teeth, providing a superior edge "bite" Stage 3, a revolutionary flexible stropping disk polishes the edge to hair-splitting sharpness High precision elastomeric angle guide UL approved . Measurements: 12.25" W x 6.25" D x 7" H This product is manufactured in compliance with U.S. standards. If product is to be used outside of the U.S., use only with the appropriate outlet adapter and voltage converter for your country. Do not plug into an electrical outlet higher than 110-120V as this could result in fire and/or injury. " material="100% diamond, steel" origin="United States"