... physical therapy supplies,health and medical device. Specification:Backing material: Soft cloth, foam, tan tricot , Non-woven ,PET,silicon rubber ... : durable lead wireFeatures:1. Self-adhesive, reusable, durable 2. Soft cloth, foam, tan tricot , Non-woven ,PET,silicon rubber ... and other colours backing for selection3. conductive gel: 4.TENS electrodes lead wire connector: Pin and snap ...