Pvc Heating Pad With Polyester Cloth Cover Relieves Fatigue & Joint Pain Promotes Blood Circulation And Temporarily Alleviates Arthritis Pain 50w 120v Ac Dimensions : 12 Inches X 15 Inches 4 Heat Settings: Warm Low Medium & High 40 Minute Auto Shut-off Function Electronic Controller Overheating Protection Power Cord Length: 9 Ft Polyester Fabric Cover Removable And Machine Washable