4/20Pcs Replacement Electrode Pads Gel Body Massager Stickers Pads Reusable20MMElectrodes PadsSelf-adhesive electrode pads: pre-gelated gel electrodes with ultra-thick conductive gels that do not require additional spectrum 360 electrode gels or conductive adhesive gelsDurable and flexible: The high-quality soft-touch white non-woven faics of these electrode stimulation pads are very durable, with perfect flexibility and comfort, can be bent to the contours of the body and around the joints, and can be treated with high-conductivity electric shock without irritating the skin Or uise the skinEasy to apply: Can be applied to any contour of the human body-conforms to your body for maximum pain reliefPackage included:4Pcs/20Pcs Machine Electrode Pads, Depend On Your Choice