Kai Seki Magoroku AP-0332 sharpening stone, 4000 grit

The Kai Seki Magoroku 4000 grit is a high-quality Japanese sharpening stone to give your knives their razor-sharp edge back, and to maintain this sharp edge. The sharpening stone is made from aluminium oxide with a J4000 grit size. It's the perfect grit size to get already sharp knives back to razor-sharpness.