Standard 14 X 27 * Excellent Retail Packaging! * Captures Moisture From The Air * Relieves Pain Of Arthritis Backache And Muscle Soreness * Forms To Body Contour * On/off Momentary Switch * Flannel Machine Washable Cover * Shipping Carton Size: 18 L X 16 W X 4 H * Hcpcs Suggested Code: E0215