Material: oak Dimensions: 160х25х11 mm Width: 25 mm Oak length: 150mm. Oak thickness: 8mm. Blank thickness: 11 mm Intended for finishing the knife, polishing, and removing the burr. This blank can be used both without any compounds for removing the burr or with them. For finishing the knife you need to apply the compound and rub it up. By sharpening on a knife sharpener move towards yourself. "To remove the diamond compound from the previous use, polish the blank on sandpaper of 1200 grit."