1.tens electrodes suit for low or mid frequency stimulator 2.Stable impedance and excellent conductivity 3.USA Gel,self gel tens electrodes(electrode pads,reusable electrode,self-adhesive electrode,massage electrode,tens electrode pads,ems pads,ems electrode,electrotherapy electrode,physiotherapy electrode,adhesive electrode pads,tens units)Size:40mm diametershape:roundSoft cloth and foam backing ...