Heat Therapy This heating pad can help relieve chronic back pain,muscle spasms,joint stiffness,and other conditions by promoting consistent circulation throughout the body. Compared with medication,it&#8217.s healthier as it allows the body to recover on its own. 9 Temperature Levels &amp. 4 Timer Settings This heating pad features 9 temperature levels and 4 Timer settings. You can customize the heat level from 44-60&#8451.(111-140&#8457.)and the timer mode from 30-120 mins. The auto-off function in 60 mins can effectively prevent burns or overheating if you fall asleep with the heating pad on. Comfortable Made of super soft microfiber,it&#8217.s skin-friendly and comfortable. The microfiber material retains heat better than other fabric. Keep you warm and cozy in the cold. Flexible And Portable Due to its flexible design,the pad can be wrapped around the back,knee,legs,shoulders,or any joint to soothe pain. With a size of 22.8x11.4in,it can be used anywhere you want as long as there is a power source. Machine Washable This pad can be washed with a machine. Just detach the controller and put it into the machine. TipsNo tumble drying!