20 pieces 5x5cm Electrodes set, Wired connection by plug, high quality reusable self-adhesive Electrodes, patch for muscle electrostimulatorPin type self-adhesive sheetjack2.0Price per pieceContents: 20 reusable self-adhesive pads. The stamp size is 5 x 5cm. Individually packaged for easy storage and use. Universal Compatibility: Classic and commonly used in the medical field, making it easier for you to find muscle stimulators and accessories. Material premium: non-woven fabric and non-irritating hydrogel. Use high-quality materials to provide users with a safe and comfortable experience. Versatile: The palm-sized cushion is a durable, resealable package that lasts longer. They can be used in different massages and massage modes to effectively relieve stress, pain and physical fatigue. Reminder: Clean and dry skin before use. This is beneficial to extend the life of the electrode.