Chemical Fiber Silk
The fakusa is a hand cloth used to hold or grasp the blade during inspection. It is intended to protect the steel from the corrosive salts and oils of the skin. These cloths are approximately 10“ x 11“ in size. They are actually two layers stitched together.
The makura is a soft pillow rest for the katana blade while not actually holding the blade. It is intended to protect the blade when set down during the inspection of the katana.