Shoulder and neck stiffness This is a pillow supervised by Mr. Takeshi Inoue, a beauty therapist. Kenmin Pillow / Used for 5 days, cover washed / Comfortable Sleep & Health Pillow Thank you for viewing. I am selling the Kenmin Pillow (Health & Comfortable Sleep type). ✅ Usage period: 5 days ✅ Cover washed, main body air-dried in the shade ✅ No stains or sagging ✅ No instruction manual ✅ Discoloration characteristic of urethane material (see photo 4) Photos: 1 & 2 with cover 4 & 5 without cover It is stored in a clean condition, so you can use it with peace of mind. I used it for about 5 days, but the height of the pillow didn't suit me, so I stored it at home for about half a year. I don't plan to use it in the future, so I am selling it. I used a towel wrapped around the pillow, but just in case, the cover that came with the pillow has been washed. I threw away the original box, so I plan to fold it in half and compress it for shipping, as it was when I purchased it. It is designed to return to its original shape over time. Please understand that this is a used item before considering purchasing it. Thank you very much ✨