Japanese Stones, Jnat, Jnats, Ohzuko, Sedimentry Stone, very fine (<12K)

Ohzuko Razor Size No.3 (130 x 80 x 17mm)

Size: 130 x 80 x 17mm weight: 437gr.
Density: xxgr./cm³ / Estimated grit size: very fine > 12k
Usage: use only with water!
Color: light green with slight Karasu pattern,
on the back grey to white with iron oxidated skin