New. Clinically proven. Heat relieves pain. Flexes to improve body contact. Back; shoulder; neck; arm; leg. 3 Heat settings. 2 Hour auto-off. With XpressHeat technology. Targeted Pain Relief: Ultra flexible pad provides soothing, high-level heat for effective relief of common muscle and joint pain (Associated with muscle tension and stress). Conformable Pad: Easily flexes to improve body contact by adapting to the shape of most body parts. Stays in Place: Lightly weighted layer of beads helps keep pad in place and snug against the body. Fast Heat Technology: Feel the heat in 30 seconds for fast pain relief. Easy care. Machine washable pad. The Science Behind Heat Therapy: Clinically Proven: Heat is clinically proven to relieve pain (Associated with muscle tension and stress). High-Level Heat: Heat increases blood flow to the source of the pain which accelerates tissue healing. Moist Heat Option: Spray fabric with water for deep, penetrating pain relief. For household use only. Due to continuing product development, product inside may look slightly different.