These cases are handcrafted in Kyoto with black bamboo grown in Kyoto and over 100 years-old Akita sugi trees (Japanese red cedar). The shape of each piece is unique: some bamboo trunks are shaped in near-perfect cylinders, while others have naturally irregular vertical grooves. The caps are made of Akita sugi and snugly fit each particular shape of the openings.
The medium and large cases can also hold a brass ball incense holder along with incense sticks. The cases demonstrate the perfect marriage of simple natural materials and superb craftsmanship.