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.
Wooden mask case
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.