The Starburst stimulating electrode design incorporates a patented multi-layer 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 optimal for stimulating electrodes. StarBurst electrodes feature an exclusive hypoallergenic hydrogel with pure aloe vera. The thick hydrogel layer provides superior adherence even after multiple uses. A tinted double-coated liner makes storage easy as electrodes can be returned to either side.