I purchased this pillow for 39,600 yen (tax included) a year and a half ago at the Loftee Mitsukoshi-mae main store after trying a sample and finding that it reduced my shoulder stiffness and made sleeping on my side comfortable. However, I felt it didn't suit me at home (it seems there are individual differences depending on the room environment and bed). I only used it for 3 days, and although I didn't have any shoulder stiffness, it was too hot and I couldn't sleep well. Therefore, I've reluctantly decided to sell it. There is some yellowing and staining due to a year of wear, so please refrain from purchasing if you are sensitive to this. The cover has been washed and hasn't been used since. It's included as shown in the third image. I would be happy to pass it on to someone who is okay with a used item. Thank you. Currently, it is stored in a bag with 5 mothballs. Features: 1. The unique 8-part unit structure supports the return of the shoulder blades to their correct position. Features: 2. The unit (A) extending on the back touches the upper thoracic vertebrae, preventing the inward rotation of the shoulder blades, releasing the shoulder girdle, and providing the same effect as a stretch pole. Features: 3. The unit (B) under the side is made higher than the other units, filling the gap between the neck and the pillow when lying on your side, reducing the burden on the shoulders and providing more stability. Features: 4. The fan-shaped pillow shape fits the shoulders and improves the stability of the head when turning over. This pillow is said to last for 5 years, so those who find it suitable may not need to buy a new pillow for a while. Please consider it. Although there is some use, I always take care of the pillow cover.