Far-infrared processed hot carpet, with 310W/620W power settings and a 6-hour automatic timer. - Model: SYC-MX212 - Power: 310W / 620W - Automatic Timer: 6-hour automatic timer - Features: Far-infrared processing - Year of Manufacture: 1997 - Size: Approximately 180cm x 180cm Used only during the winter for a long time. A cover was used on top of the carpet, so the surface appears to be free of noticeable stains, but the underside was placed directly on the floor, so there are scratches and marks that look like stains. (See photos) Operation has been confirmed. This item is over 20 years old and from a manufacturer that no longer exists, so it is unknown how long it will last. It will be wrapped in plastic for water protection and shipped without a box. Please understand the above before purchasing. Number of Tatami Mats: 1.5 tatami mats to less than 2 tatami mats Length: 150cm to less than 180cm Width: 150cm to less than 180cm