Information The Shapton RockStar sharpening stone, with a 500 grit and 25-micron grain, is part of the Shapton RockStar series. Made from premium white aluminium oxide, this synthetic ceramic material is extremely durable and precisely manufactured to achieve an exact grain size. This ensures consistently reliable sharpening results. Coarse sharpening stones like this are ideal for sharpening very dull knives. Specifications:- Material:- White aluminium oxide Grit:- 500 Grit Size Micron:- 25 Micron Dimensions:- 21cm x 7cm x 1cm Weight:- 300g Made in Japan
