Thank you for viewing. Introducing a natural whetstone from Kyoto Shobonzan. This is a whetstone from the old Nakayama mine, received from a member of the cooperative. It's a hard-mouthed Tomae (the finest part of the stone). Strong abrasive power, top quality. Size: 147mm x 60mm x 25mm, 702g Thank you for your consideration. ※ Received directly from a member of a whetstone shop cooperative in Kyoto. Please be aware of accounts selling stolen goods by foreign nationals.