This is a single sided 1000 grit Whetstone (Toishi) without a base, a good starting point for restoring an edge to a well used knife. This medium grit whetstone is used when restoring dulled edges or after a coarser whetstone has already been used to recontour a blade or fix a chip. If you need a base check out our adjustable base here.

The Sakai Takayuki Japanese Toishi Sharpening is made in Japan.  

Soak in water for 2 min