Water sharpening stone with 1000/3000 grain, the 1000 side is excellent for sharpening while the 3000 side is designed for polishing and finishing the wire.
The stone is supplied in a plastic box which also serves as a base for sharpening.
Japanese water stone manufacturer Naniwa, based in Osaka, is renowned as the supplier of the best sharpening stones.
Stone size mm. 185 x 65 x 30