【High-Quality Materials】 This pillow pad is made with 100% polyester for the outer and inner fabrics, combining durability and comfort. The back fabric uses 100% cotton, providing a soft touch and supporting comfortable sleep. 【Size and Fit】 The size is 35cm x 50cm, fitting most standard pillows. You can use it with your existing pillow. 【Made in Japan】 Made in Japan with thorough quality control, ensuring peace of mind. - Size: 35cm x 50cm - Outer Fabric: 100% Polyester - Inner Fabric: 100% Polyester - Back Fabric: 100% Cotton - Country of Manufacture: Japan - Manufacturer's Suggested Retail Price: ¥13,200 (including tax) What is Ultra-Fine Vibration P-UP® Wave? The electromagnetic wave (terahertz wave) emitted by the healthiest people is also called the life ray. The Ultra-Fine Vibration P-UP® Wave is an electromagnetic wave closest to this terahertz wave band. It is said that the decrease in the amount of this electromagnetic wave emitted due to aging, illness, or injury causes a decline in various functions, leading to physical ailments. Receiving this Ultra-Fine Vibration P-UP® Wave is expected to cause resonance, working to restore the decreased vibrations within the body. Furthermore, research results indicate that terahertz waves are the most beneficial for the body and are completely harmless and safe, even with significant exposure. ☆Please note that the packaging will involve folding.