Cylindrical pillow made of paulownia wood, manufactured by Daimru Kondo. - Brand: Daimru Kondo - Material: Japanese paulownia wood - Country of Manufacture: Japan Size: Medium Height: 7.3 cm Width: 27 cm Depth: 15.5 cm For a family member's back pain. A friend recommended this pillow, saying it's effective for people with back pain. However, I haven't used it myself, so I don't know the specific usage. There are no noticeable stains. Thank you for looking.