The Pen Case is made from a hardened fiberboard called Pasco. Pasco is a combination of recycled paper and fresh pulp that is designed to be water-resistant, light, and durable—perfect for keeping all your favorite pens and pencils in one place.

The Pen Case is procured by Midori, a Japanese stationery brand started in 1950 that produces design-focused products focused on enriching and adding color to people’s daily lives.