HADOUSHI is a tool to sharpen the points of between teeth of a comb and teeth and the teeth.
It is thin in the stick that the section was the triangle from the handle toward the point.
It is a tool to have pasted the plant named TOKUSA;scouring rush from the point within the range of about 15 cm.
Another also has the one that not TOKUSA but the sharkskin was pasted.
Kiso no orokugushi ; The comb in japan.