This heat pad has 6 integrated permanent magnets, which generate a homogeneous magnetic field. Under certain conditions, static magnetic fields can have a favourable effect on the organism and relieve pain. This device has three temperature settings, a safety protection and an illuminated function display. The safety features include an automatic switch off after approximately 90 minutes. Complete with a cosy washable cotton cover. Size 300 x 400mm (12 x 16 Inch).