24"x20" Electric Heating Pad 3 Heat Levels Muscle Cramp Back Pain Relief Warmer. Effective Pain Cramps Relief: This heating pad combines weighted pressure, vibrating massage. It can help you relieve pain in a matter of seconds. Perfect for athletes, office workers, anyone suffering from chronic pain or muscle cramps Soothing Pressure: With 4.1lbs of pure natural pottery beads evenly distributed , this pad ensures a snug fit to various body parts, providing instant heat penetration. Perfect for use at home, in the office, at gym or while traveling Personalized Design: 3 heating levels from 115? to 145? and 3 different vibration settings are featured for you to choose the perfect temperature and massage mode and enjoy a thorough body relaxation. It also makes a thoughtful gift for loved ones Premium Quality Fabrics: This WOOMER weighted massage heating pad is reversible designed with one side fluffy flannel and the other side ultra-soft micro plush that is both durable to last and comfortable for the skin