Product Name: Orthopedic Pillow Doctor's Pillow Manufacturer: Shiori Yamada Pillow Research Institute Retail Price: 19,800 yen Purchased about two years ago and used for less than six months before being put away. It was a bit too firm for me. I used it with the green dedicated pillow cover (washed) and then another pillow cover on top. The washed green pillow cover will be included for shipping. There is some wear and tear. There is some color change in the inner material due to aging. Unused material (for height adjustment) is also included. The pillow itself, adjustment sheets, and instruction manual are all complete. ~Product Description~ Inner Material: Urethane, Polyethylene Inner Cover: Polyester, Polyurethane Outer Cover: Cotton, Acrylic, Polyester, Polyurethane Size: Width 50cm x Depth 25cm The height of the pillow can be adjusted in 5mm increments from 4.0cm to 9.0cm. Color: Green (pillow cover) Recommended Age: Based on experience with custom-made pillows, we recommend use for those aged 10 and over. Compatibility with Bedding The pillow's compatibility with the bedding is important. In cases where it doesn't fit well, the pillow may shift and become difficult to use. Please be aware. Examples of poor compatibility: Waterbeds, gel beds, urethane mats (low-rebound, high-elasticity), etc. Developed by Shiori Yamada, an orthopedic surgeon in charge of the pillow clinic, using materials used in custom-made pillows. You can adjust the pillow height to your liking in 5mm increments, and it has a flat structure that makes it easy to turn over in your sleep. It is firm to maintain its height. ・How to Wash: Do not wash the white inner cover or the inner material. 1. Only the outer pillow cover can be washed. 2. When washing, put it in a laundry net. 3. Do not use a dryer. ・Management Method 1. Avoid direct sunlight and place it flat. 2. In winter, the surface may feel hard if left in a cold place for a long time. 3. If you are concerned about humidity, we recommend placing it in a well-ventilated, shady place. The color may differ from the actual product depending on the monitor's color development. Regarding the smell of urethane material: Due to the materials used, the material may have a characteristic smell immediately after delivery, but the smell will disappear if you dry it in the shade for 2-3 days in a well-ventilated place. #Yamada Pillow