Retail Price: ¥4500 → ¥3650 ・Includes pillowcase I am selling this because the height didn't suit me. The pillowcase is clean, but I will wash it and include it. If anyone is interested, please consider using it. • The pillow core conforms to the shape of your head, providing personalized support and helping to alleviate headaches. • The pillowcase has a sturdy construction and excellent breathability and durability. • The main drawback is that it tends to trap heat, which can lead to overheating and sleep disturbances at night. I have disposed of the original box, so it will be shipped in a different box. Please be aware of this.