This well made electric heating pad comes in two versions, one offering dry heat only and the other moist heat. The version offered here is moist heat only. The heat brings comforting relief to sore,aching muscles and joints...is excellent for sports-related injuries or strains from over-exertion. The moist heat electric pad has 3 automatically-controlled heat settings. Comes with a removable, washable cover. The pad measures 14.5 inches by 12 inches. The dry heat pad is offered elsewhere on the personal products page.