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 24 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 *