COMPEX ELECTRODES 1 SNAP, 2 PACK (50X100MM)Compex Electrodes are reusable and will last around 25 30 sessions, depending on the type of skin and its conditions at the time of application. We recommend you to clean your skin before applying the electrodes. Electrodes are moisture sensitive so avoid applying them on creams, lotions, and sweaty skin. Store them in a dry and cool place. The electrodes are one of the most important parts of your Electric Muscle Stimulation session. COMPATIBLE