Thermal Therapy offers an outstanding, non-invasive and soothing technology. Thermal Therapy products are made in part from a lightweight material infused with ceramic powder to reflect Far Infrared (FIR) waves back to the body. The FIR waves help loosen muscles and increase circulation. Use Thermal Therapys Western Underpad under your regular western pad to generate warmth and to help to ease any tension in your horses back muscles. Helps loosen back muscles and increase circulation Infused with ceramic powder Reflects Far Infrared (FIR) waves back to the body Use under your regular western saddle pad Not for use on pregnant mares Measures 31″L x 30″W