These are easy to use to make an anpproximatelt 2-3k edge for toothy finishes on knives that do not benefit from a finer finish or as use in a progression with other finer stones. 

These are lacquered to prevent them from falling apart, but it is important not to soak these, similar to other naturals.

Brand: Tanaka Toishi 田中砥石工業所
Product Type: Natural Stone
Size: Type 15
Producing Area: Kyoto/ Japan
Soaking Requirement: Not required
Size: 200 x 58 x 58mm
Weight: 1300g