(Thermotex Therapy Systems) The Thermotex Therapeutic TMJ Hood utilizes 4 infrared pads. Two pads are positioned along the TMJ and two pads are along the poll. The cover portion of the hood is 100% nylon with a polyurethane coating, and is washable. The infrared pads themselves are not washable or flexible, therefore should never be washed or bent. Adjustable high/low power settings. Velcro fasteners to adjust fit.