大内山 特上 Japanese natural Stone Ohuchiyama rare stone.
WEIGHT : 0.785 gm Approx
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Stone size : 204mmx 77mmx 20mm aaprox
Origin : Kyoto/Japan
Hideriyama natural stones are quarried in the mountains near Kyoto and quantities are limited. These medium soft polishing stones are in the 8,000 to 10,000 grit range and are perfect for putting a refined edge on your knife.
Before use, simply splash water on the surface of the stone.