This DuoSharpPlus Whetstone is the most popular combination of Fine 600 Grit and Coarse 325 Grit Diamonds and comes with a DuoBase and Non Slip Mat and Staedtler Diamond Cleaner.
The DuoSharpPlus is a precision flat two grit diamond sharpener featuring both interrupted and continuous diamond sharpening. 8" DuoSharp®plus™ Bench Stone offered with a non-skid mat and a DuoBase™, provides excellent counter and bench sharpening, features two sides of 6" long interrupted diamond surface sharpening— perfect for knives, scissors, tools PLUS the benefits of a continuous zone for small and pointed tools. Sharpening with diamonds is fast and easy. No messy oils needed—sharpen dry or with water.
DuoBase Bench Stone Accessory can be used with any 6" x 2" stone, all DuoSharp® and Dia-Sharp® Bench Stones. Provides 2" knuckle clearance for ease of use. Rubber feet secure the base and stone to the work bench or counter. Features a convenient handle on the underside for use with the DuoSharp bench stones for moving the stone over a large work piece for maximum versatility. Having been selling DMT Diamond Sharpeners for over 40 years I can assure you they are the finest you can buy and at this price you are getting a bargain! I'm pretty sure you won't want to return it but if you do it must be unused and with the original pack and sent Royal Mail Signed For.