This is a heated pad that is expected to provide health benefits through germanium, such as those found in ganbanyoku (rock bathing). - Brand: Otsu Corporation - Model Name: Germanium Processed Shikipad (Underlay Pad) Size: Single - Color: White Beige - Features: Health benefits from germanium Fatigue recovery, improved immunity, blood flow promotion, etc. Confirmed to be germanium processed via inquiry about the product number. I thought it was a regular single pad. It was new and stored for a long time, but it has been opened for the purpose of taking photos for the listing. Thank you for your understanding.