Latex-free Long Lasting .040 Inch Thick Hydrogel Superior Conformability To Body Contours Quick Moderately Aggressive Tac Firm Yet Gentle Electrode To Skin Contact For Multiple Applications High Re-wettability/dryout Resistance Effective In High Heat And Humidity Highly Conductive Carbo Film Even Current Distribution Soft Foam Covers Flexible And Conformable To A Variety Of Application Sites Soft Molded Socket Connector Provides Superior Connection To The Lead Wire Only One Available In The Market Highly Conductive Pigtail Wire Strands Flexible And Durable For Multiple Uses Pictographic Electrode Liner Patented Electrode Design Ensures That Any User Can Return Electrodes To The Correct Side Of The Storage Liner