Features:– Suitable for various medium frequency electronic physiotherapy machine.– Help to improve blood circulation, promote metabolism and eliminate fatigue.– Self adhesive, high adhesive, convenient to use and reusable.Useful and safe accessory for medical care.– Specially designed holes, on each pad, to release the generated heat and give more comfort and less irritation.Specifications:Material: Silicone + GelSize: 5x5x0.2cm/1.9×1.9×0.1inPackage Included:2x Replacement PadsNote: Cleanse your skin before using electrode pads for better results.