45cm x 85cm XXXXL Size for Full Body Use: King large size 45cm x 85cm heating pad is designed for help blood flow, relief your pain and relax your muscles of all your body part, your legs, arms, necks, and large enough for your back, This heat pad provides consistent heat output for soothing therapy. Product Material Machine Washable: Removable controller and washable plush help maintain the tidiness and softness of the washable heating pad. The flannel feels smooth and soft, provides maximum comfort for your body. Fast-Heating Technology 120 Minutes Auto Shut Off: The product warms up just in few seconds, it can auto turn off within 120 minutes. 6 Temperature Settings Overheating Protection: Overheating protection and 6 temperature settings guarantee better and safer user experience of the stress relief heating pad.