SAFE FOR USE WITH 2 HOURS AUTO OFF- and have designed overheat protection and two-hour automatic shut off function for safely usingEffective pain relief - Large electric heating pad is designed to improve blood circulation, relief muscles pain. When you feel back pain or other muscle soreness, just plug in the heating pad to relieve your pain in seconds.MULTIPLE HEAT SETTINGS - Design Low/ medium/ high temperature heat settings, you can choose your desired temperature. High temperature is designed for deep pain relief.ULTRASOFT AND COMFORTABLE- It is made of gorgeous, soft and non-falling fabric. Built-in ultra-thin heating wire. It will bring cozy and warm touch to skin. It can also be machine washed to provide max convenience and comfort in your daily life.