Replace your worn out electrodes with a set of brand new Chattanooga Rubber Carbon 3-inch electrodes from MassageTools. These electrodes are made for use in electrotherapy physical therapy equipment. Electrotherapy is the use of electrical stimulation transmitted through the body to cause therapeutic physiological reactions. These electrodes are the pieces that transmit the current through the patient's body. The rubber carbon pads are very flexible and provide uniform conductivity over the electrode surface. They can be washed and reused repeatedly to give you the best value. Two electrodes are included in each order and you have the choice of a red pair or a black pair. These rubber carbon electrodes for electrotherapy are compatible with the Intelect Legend XT System.