Thermal Therapy offers an outstanding, non-invasive and soothing technology. Thermal Therapy products are made in part from a lightweight mesh material infused with ceramic powder to reflect Far Infrared (FIR) waves back to the body. The FIR waves help loosen muscles and increase circulation. The warmth Thermal Therapys Western Felt Pad generates when in use will help to ease any tension in your horses back muscles, making it great for horses who tend to be a bit stiff. Great on its own or to line a Navajo pad. 21 mm thick. Helps loosen back muscles and increase circulation Infused with ceramic powder Reflects Far Infrared (FIR) waves back to the body Use on its own or as a liner under a Navajo pad Not for use on pregnant mares 21 mm thick