Brand: Morihei 森平 Product Type: Natural Stone Size: Koppa Producing Area: Kyoto/ Japan Mine: Nakayama Hardness (5 = Very Hard): 4 Grain Scale (5 = Very Fine): 5 Sharpening Speed (5 = Very Fast): 5 Soaking Requirement: Not required Size: 160 x 80 x 34mm Weight: 660g Reviewed by Morihei Update: 5月 30, 2026
* Measurement and photos are from sample I picked up randomly, please understand that each item(s) has unique profile and colur because of handmade and natural materials.
*Please understand that we are supplying as wholesale and selling it at the website at the same time. If you purchase item(s) after supplied to the retail shop, this might be out of stock.
