PERFECT SIZE: The perfectly sized 30 x 60 cm heating pad simultaneously heats larger areas of the body such as the back, neck, shoulders, stomach, legs and even the joints. Safety technology Unique: The heating pad adopts PTC heating wire protection system for safe heating. The unique overheating protection copper wire covers the entire heating pad, if the temperature of any part of the heating pad exceeds 60 C / 140 F, the heating pad will automatically shut off for added safety. /p> Temperature control and automatic shutdown: 6 selectable heating levels, temperature range 40-60 C. 4 timer modes 30-120 minutes, heating pad automatically turns off when set temperature is reached. Soft, machine washable flannel : The flannel fabric will keep you comfortable while maintaining contact while effectively retaining heat. After removing the controller, the flannel pads are machine washable at 40C for hygienic comfort. Rest assured: a unique circuit provides a constant temperature. If the local ceiling temperature is too high, the power will be automatically cut off. Ideal for providing you with a warm and safe comfort zone.