Designed specifically for Health Wave, this is a very easy-to-use, box-type boa sheet that is warm and soft to the touch. While it is used with Health Wave, which is recommended by the Japan Adult Disease Prevention Association and the American Chiropractic Physicians Association, it can also be used with general bedding. Size: 200 cm x 110 cm x 11 cm Color: Yellow It can be used with any bedding smaller than this. Although it appears to be unused, please note that there may be some deterioration due to aging from long-term storage. There is some slight damage to the packaging.