2. the finest western red cedar export directly from Canada
3.Innovative upper panel design, which can get into effortlessly
4.Technologically Advanced Far Infrared Flat Heaters: seven flat carbon heaters with ceramic sand safely and efficiently warm your body. with heaeters targeting your back,the sides of your legs,the front of your knees and below your feet,the patented technology of far infrared heat penetrates evenly for optimal results.