reserv 2" x 4" rectangle premium re-usable self adhesive electrode pads for tens/ems unit, fabric backed pads with premium gel (white cloth and latex free) (4 eelectrodes) reserv latex-free, fabric backed reserv electrodes are as easy to take off as they are to put on. the high-quality tens unit pads come in a pack of four, 2" x 4" electrodes. these sturdy and reusable electrode pads provide proven cost-effective utility. with soft, conformable lead wire connectors that firmly grip the lead wire pin, these adhesive electrodes create secure, accurate connections for tens units and electronic muscle stimulators. the adhesive gel allows multiple uses per electrode while still delivering the same desired therapy. to reuse, simply place the electrode on the skin, and when finished, place the electrode back on the pad. the included resealable packaging and proper handling can help keep the electrode pads going even after multiple uses without losing their stickiness. you can apply the tens unit pads to your neck, back, shoulder, thighs, knees or legs and feel therapy relief almost instantly.