Product Summary: This is a Japanese natural whetstone (JNAT) from the Nakayama mine in Kyoto, Japan. Specifically, it is mined from the "Chusei Nakayama" area and belongs to the "Renmaki" stratum. It is described as a high-quality Koppa (irregular shape) stone. It is suitable for sharpening tools, razors, and knives. The hardness is rated at 3.8 out of 5 (1 being the softest and 5 being the hardest).

Condition: Unused. Stamps on the top surface and sides are clearly visible.

Specs:

• Dimensions: 65 x 125 x 30 mm

• Weight: 582 g

Important Notes:

• The photos show the actual item.

• As this is a natural stone, patterns, lines, color variations, and surface differences may be present.

• This is a pre-owned item sourced in Japan.

• Please check all photos carefully before purchasing.

• The condition is based on the photos and available seller information.