Description An artificial highest class stones. High grinding power,hard to decrease. You don't have to soak it in the water long time. Plastic case can be used as whetstone stand ! Don't use oil etc. Water only. ★Japanese model is quite different from US ,EU export model. Surely ,greater than them. 10 attribution are available. Do not soak too long. Size 75x210x15mm (25.4mm=1inch) Made in Japan ■Bundled Items