... 2.5mm4.Materials:Materials:Rubber Electrode Pad,Mould RubberParts, Rubber Products,Silicon Rubber ,Silicon ElectrodePads.Silicon Electrode Pad,Materials: different kinds of rubber, such asNBR,SBR,EPDM ... Compliant green products. 8.Packing:carton packing or special packing Silicon rubber electrode,electrode pads,Silicon rubber electrodes tens