Double sided whetstone including 220 Grit, and a 1000 grit stone. 220/1000 are coarse stones mostly used for chipped, nicked, damaged blade edges. Read more
About the Naniwa Basic Series: The Naniwa Basic series is an affordable sharpening stone from Naniwa. It doesn't catch the blade too much so it's a perfect sharpening stone for absolute beginners & those wanting to learn basic sharpening skills.
About Naniwa: Established in 1941, Naniwa Abrasive has been manufacturing construction abrasives, diamond cutters, grinding, and sharpening stones for all industries.With a high-quality manufacturing process and technology, Naniwa has been one of the leading companies in manufacturing the highest quality whetstones that chefs adore.