westinghouse electric heating pad for back pain cramps relief, 6 temperature settings-2 hours auto shut off-moist heat dry therapy-extra large 12x24 inches, grey, machine washable westinghouse product specifications:</br> size: 12” x 24” </br> power supply: 120v, 60hz, 150w</br> auto shut-off time: 2hours/ 6 setting</br> package includes: 1 x electric heating pad; 1 x led controller;1 x user instruction; 1x pe bag</br></br> 6 temperature range: </br> warm–temperature range (950 f ~1040 f) </br> low–temperature range (1040 f ~1130 f) </br> medium low –temperature range (1130 f ~1220 f) </br> medium–temperature range (1220 f ~1310 f) </br> medium high–temperature range (1310 f ~1400 f) </br> high–temperature range (1400 f~1490 f) </br></br> tips ---- do not use this bedding if you are:<br> * a child under the age of 12. </br> * incapacitated or immobile person. </br> * diabetic or insensitive to heat. </br> * a paraplegic, quadriplegic or amputee person. </br> * having poor blood circulation. </br> * over cuts, skin lesions, sores or areas of damaged skin. </br> * anyone who can not clearly understand the instructions and/or operate the controls.