Just got a dry razor hone & not heard of one before.
The instructions on the back says use no water, soap or lather.
Do not bear down on the razor & 5 strokes will be enough for a sharp edge.
Sounds too good to be true!
It looks black but while flattening it off the dust is a soil brown.
The size is 6” x 1” x ½” Feels silky smooth like graphite.
Looking at it with a loupe it seems to be made up of random size particles
& a binder, the instructions are on the back but no manufacturers name.
Any Ideas?