This is a Printer paper made of wood using native Japanese tree called yoshino-sugi（ceder) and put a paper and a slice of wooden material together.
"Wooden Straws" are made with Japanese domestic lumber (including thinned wood).
Wooden Straws are made by cutting domestic lumber into extremely fine 0.
This is a wooden mask case made from Japanese wood (including thinned wood).
It can protect spare masks and used masks from dirt and bends.