A hard transition olive to gray tomae in a compact travel or hand held format this is a true razor grade stone as tested on my Henckels Friodur razors. This stone will come with a tested tomonagura. Super smooth deep strata stone it has an olive green surface that eventually will wear to a gray base.
Hardness 5+ / Fineness 5
Cutting speed 4 or 5- with a diamond plate slurry
Weight 394 grams