infrared heated waist support,fir heated waist support,far infrared waist belt Features: 1) The Far Infrared heating fiber pad is inside2) Size: any size is available3) Material: nylon, latex4) Color: black and blue or red5) Temperature: 40 - 70°C6) It can heat the waist, and eliminate ache, increase the circulation of blood7) With DC 7.4V battery