💎TSProf Diamond 150

Naniwa uses names "sharpening stone" for Super Stones and "professional stone" for Chosera

Snow White stones are made of aluminum oxide with the magnesia binder

💎Edge Pro Matrix 2300

belgian blue whetstone edge pro 💎TSProf Diamond 150Belgian Blue Whetstones (BBW) are used for finish sharpening on Hapstone or Edge Pro knife sharpeners. BBW stones are available in 6 mm thickness, and are mounted on high quality aluminum blanks. Belgian Blue Whetstone is mined in the Ardennes mountains in Belgium. BBW is natural slate with a high garnet content. BBW stones are universal, and can be used to sharpen knives of any steel. Specification Product size: 160 x 25 x 9 mm (6" x 1" x ") Working