Intended to be used with TENS and EMS units, self-adhesive electrodes provide optimum conductivity for the perfect electrotherapy. They can last for 8 to 10 uses or on average 2 weeks. Take advantage of our everyday low prices, buy in bulk and save even more! Superior Silver Simulating Electrodes By Kendall Company are silver conductor electrodes made for electrotherapy, such as TENS units, NMES and FES units. Conductive silver layer provides uniform current distribution and comfortable stimulation. Constructed of flexible, durable and low profile materials to enhance electrode skin contact and provide ultra conformability to all body contours. Extra thick PermaGel provides improved adherence and reusability. Multiple applications from 10 to 14 days. 4 electrodes loose packed in Poly Foil Pack. This product is required to be reported under California Proposition 65.Features: Stimulating Electrode Self-adhesive Low profile materials Reusable This product is required to be reported under California Proposition 65 2 x 2 Inch Package of 4