Large Gel Pads ReplacementThese doctor developed electrode gel pads are carefully sized to deliver an exceptionally deep, penetrating, and soothing massage when used with a DR HO'S Electrotherapy device. They have been carefully sized to be used on larger muscle groups, such as the back and quads, but are also great to use for the shoulders, knees, and calves. The resulting relaxation effects are especially beneficial for larger muscle areas, effectively alleviating muscle