Check the listing for details. FALLKNIVEN SWEDEN DC521 DIAMOND / CERAMIC BENCH SIZE WHETSTONE 55 X 210 MM. Condition: New. Listed at 112.58 USD. 0 false 18 pt 18 pt 0 0 false false false The Fallkniven DC521 is a large bench style whetstone of a less common category, since it offers two different kinds of stones. The yellow part is a fast and aggressive diamond stone, while the dark is a slow, very fine ceramic stone made of synthetic sapphires. Both surfaces are precision flat, which is a prerequisite for perfect sharpening results. The diamond stone works fast and should be used if the edge is very thick. The sharpness obtained is usually enough for everyday tasks. The ceramic whetstone works much more slowly and gives a smoother, razor-sharp edge when necessary. For tools and chef knives, this bench stone is among the best we can offer. It comes in a nice gift box, and sharpening instructions are included. Metric Dimensions: 12 x 55 x 210 mm Inch Dimensions: 0.47 x 2.17 x 8.27 Inch ! Makes A Great Gift ! .....................