Yoshino lacquer paper(square)/新吉野紙 (尺角判)
This washi paper was made in the headstream of the Yoshino river in Nara prefecture. It is very thin but tough, used for filtering urushi.
1 package has 100 papers
Filter the Urushi to remove impurities such as dust in the urushi. Tools: koshigami, small plate Here is the instruction in this link