This innovative knife sharpener is super effective and simple to use. Produces a professional, razor sharp edge on all types of knives from Japanese-style to serrated knives. The "soft touch" flexible sharpening system contacts the knife 99% of the time while sharpening. The system is comprised of two spring-loaded grinding wheels - one coarse and one fine. Grooves hold the knife blade at the optimum 15-degree angle for sharpening. Knives are first sharpened in the coarse section and then honed to perfection using the fine section. Made to last for many years. Features: Pre-sharpening stone restores bevel and extends cutlery life. Light duty built-in knife guides. Compact size. Specs: Dimensions: 8 1/2"W x 2 4/5"H x 3 1/2"D. Voltage: 110V AC. Wheel Speed: 1,100 RPM. Torque: 900 G.C.M. Maximum Blade Angle: 15. Minimum Blade Angle: 11. Maximum Grinding Contacts: .1". Shipping: Ships via UPS Ground. Ships within 2 business days. Manufacturer's Warranty: Six Month Manufacturers Warranty.