Olga Hexa Maintenance Care Mat General Medical Device Purchased for 64,900 yen. I am selling it because I purchased a new one. It feels like your body warms from the core because it emits far-infrared rays, and you wake up feeling refreshed. Rubber is firmly attached to the four corners. Recommended for those who suffer from cold sensitivity! I will ship it as compactly as possible. I threw away the original bag.