This is a Nagato quiver with a depth of 100cm. It is made of paper. "Washi" is made from plant fibers such as kozo (mulberry), mitsumata (oriental paperbush), and ganpi (edgeworthia). "Koyori-zaiku" is made by cutting washi into long, thin strips, twisting them into cords (koyori), and weaving them around a wooden mold to create various shapes, which are then coated with lacquer to harden. Koyori-zaiku developed as a craft during the Edo period. Because it is light, durable, and water-resistant, it was used to make items such as string cases, inro (medicine cases), gohitsu (small boxes), and woven umbrellas. Koyori-zaiku was produced in various regions, but it was particularly popular in Nagato (present-day northwestern Yamaguchi Prefecture), and thus it came to be known as "Nagato-zaiku" as a general term for koyori-zaiku. This quiver, made with such Nagato-zaiku, is a "Nagato quiver." Thank you for looking.