Designed especially for moist heat therapy to the hands, and may also he used on elbows and ankles. New! Advanced Four-Stage Therapy Switch. Product Size/Type:MuffProduct Dimensions: 17" X 8" - Cylinder Shape Recommendations-Dosage/Usage: 20-minute therapy cycle Indications: Instant moist heat for hands, elbows and feet Straps adjust for a comfortable, close fit Soft flannel lining is removable for ease in launderingAttractive, quilted outer covering Professionally recommended for temporary pain reliefMoist heat penetrates deep into tissues to temporarily relieve pain and stiffness.Perfect for tennis elbow, before and after playing. More convenient than paraffin wax baths. Warnings:Danger: Carefully examine before each use. Discard unit if shows signs of deterioration. Follow instructions packed with unit. Do not use on infants, persons with poor circulation or insensitive skin. Persons with diabetes should be especially careful applying heat. Check skin frequently to avoid burns. Temperature is sufficiently intense to cause burns. Use no pins. Do not wet. Included: Fleece Blend Flannel Cover Max Temperature: Up to 170° Fahrenheit (Unit only has one temperature setting).Electrical Specs:110 Volts; 75 Watts - 60 HZ A.C. - Cord is 6' in length