This is a wide-size orthopedic pillow from Yamada Akiori Pillow Research Institute. I used it for about 3 months, but unfortunately, I couldn't get used to it, so I've been storing it at home. It's a wide size (30cm long x 60cm wide), with a height of 7cm and a list price of 38,500 yen (including measurement fee). The height can be adjusted in 5mm increments. Includes instruction manual. It's composed of sheets with different heights and materials, allowing you to adjust the pillow's height and firmness yourself. Inner cover included. Everything in the photos is included. One sheet is missing.