About This Plastic Made in the USA Sharpen kitchen and sport knives to a razor-sharp edge fast and economically. Easy 2-stage sharpening system for professional results at home on most any non-serrated blade. Sapphirite sharpening wheels grind a precisely angled edge then fine hone and polish for a razor-sharp edge. Sapphirite sharpening wheels are made of the same ultra-hard material used in professional sharpening shops. Precision blade guides hold knife at the perfect angle. Draw knife through each slot a few times for a razor-sharp edge. Two-stage sharpening system quickly and easily sharpens most any non-serrated blade for professional results in the convenience of your home. (Presto knife sharpener is 120 volts) No guess sharpening; Precision blade guides position the kniffe at the ideal sharpening angle for perfect results every time Creates a razor sharp edge in seconds using Sapphirite sharpening wheels, the same ultra-hard material used by professional shops Stage 1- Precision grinding begins the sharpening process by creating a precisely angled edge Product Built to North American Electrical Standards Overview Material : Plastic, Sapphirite wheels Brand : Presto Color : Black Product Dimensions : 9.9"L x 7.2"W x 4.8"H Item Weight : 2.95 Pounds Grit Type : Fine Number of Items : 1 Manufacturer : Presto Global Trade Identification Number : 00075741088006 UPC : 075741088006