PAIN & SORE MUSCLE RELIEF-Heating pad for back pain relief delivers a stream of heat to the affected area, eases back pain, unbearable cramps, and provides pleasant muscle relaxation 3 HEAT SETTINGS(HIGH,MEDIUM,LOW KING SIZE-XL size makes this the perfect heat pad for back pain on your neck and shoulders, legs or stomach, extremely comfortable. SOFT MICROPLUSH FIBERS -Heating pad for neck and shoulders is ultra-soft, giving that awesome cozy feeling, wherever you put them. Flexible microplush adapts to your body shape for maximum effect. MOIST AND DRY OPTIONS MACHINE WASHABLE! Low, medium or high temperature heat settings + Can be used moist or dry.