SIZE: 30*60CM RELIEVE PAIN SORE MUSCLE AND SOOTHE ACHES WITH HEAT THERAPY: This heating pad for back pain relief spreads heat evenly throughout the affected area, reducing pain, swelling, and inflammation, which effectively relieves neck, shoulders, back, legs, arms, waist, abdomen pain or unbearable cramps. The electric heating pad provides consistent heat that penetrates your muscles and soothe your aches in seconds. 6 HEAT SETTINGS: Super fast heating technology allows the heating pads for cramps to reach and maintain a fixed desired temperature, which relieves your pain or cramps in seconds. This device has six personalized heat settings with an attached easy-to-operate digital backlit LCD controller with temperature heat levels ranging from 104 F ~ 140 F. You are able to choose the right heat level based on your comfort for both dry and moist heating sessions. ULTRA SOFT MICROPLUSH MACHINE WASHABLE: The heat pad is made of premium washable micro plush fibers that make up the plush material on both sides of the pad that are rather soft and comfortable on the skin. auto-off timer feature of the hot pads helps you conserve energy and prevents excessive heating for safety. If you find yourself forgetting about your hot pad or falling asleep while using it. The neck heating pad offers maximum safety and comfort for daily use. Timer setting: 30/60/90/120 minutes. Line length: 229CM