Product Details 12 in x 15 in (30.5 cm x 38.1 cm). Clinically proven heat relieves pain (associated with muscle tension and stress). 3 heat setting. Moist heat option. Pain Relief: Soothing heat therapy for common muscle and joint pain. Fits most muscle groups. Easy Care: Machine washable cover. The science behind heat therapy. High-Level Heat: Heat increases blood flow to the source of the pain which accelerates tissue healing. For household use only. 5 year limited warranty. UL listed. www.sunbeam.com. Made in China.