The Accusharp deluxe tri stone knife sharpening system, featuring a course diamond coated steel, allowing you to easily sharpen and hone any straight edge blade with ease. Accusharp's three stone surfaces include coarse diamond, medium alumina oxide and fine ceramic. This deluxe tri stone system provides extra durability and safety on any surface with a rubber grip base which prevents sliding while sharpening and honing your knives. Additionally, the deluxe tri stone sharpener base can be mounted to most countertops for extra stability. Also included is an angle guide to assist in maintaining a consistent angle while sharpening.