The Blue Jay Elite Healthcare Brand of PEEL 'N' STIK DELUXE MULTI-USE REUSABLE 2" x 2" Square Pack/4 ELECTRODES are of the highest quality, affordable, non-sterile, reusable and self-adhering * Coated with long-lasting and reliable gel, these powerful electrodes are excellent conductors of electric current * Our electrodes are the perfect replacement electrodes and can be used with most TENS, Muscle Stims, IFC and other pain relieving devices * They are FDA approved, can be applied to all contours of the human body and can be reused between 8-10 times * Each pack of electrodes comes with a maintenance and instruction sheet * Latex-Free *