A hard compact kamisori razor hone from a deep strata. This is the perfect travel size hone, it is thick enough to be held comfortably in the hand, and fast and fine enough to refresh a blade without fiddling too much while away from your shop. It can be used on western folding razors but the size fits the kamisori model perfectly. All of the darker coloration is of the same girt, not toxic and not scratchy. Kamisori is some of the hardest steels out there, and this stone excells with a light slurry. It weighs 452 grams and will come with a tested tomonagura.