Kendall Healthcare Self-adhering and Reusable Stimulating Electrodes 2-3/4" Round The Starburst stimulating electrode design incorporates a patented, multilayer, gradient pattern providing the most advanced, current distribution system available. This unique, gradient pattern is made of pure silver, known as a superior conductive material, and is optimal for stimulating electrodes. The new, aloe vera hydrogel has passed rigorous hypoallergenicity testing and provides superior adhesion after multiple uses. Incorporates a highly conductive, silver ink printed in a patented, gradient, starburst pattern on a conductive carbon film base. An exclusive hypoallergenic hydrogel formulated with pure aloe vera gel. A thick, hydrogel layer. A tinted, double-coated storage liner. Uses a copper-tin, lead wire. Soft, molded, lead wire connectors<.> Efficient conductivity with low electrode impedance. Unit of Measure Contents Sold By Package (PK) 4 Each 1 Total (1 Package)