Feature: Suitable fordifferent mid level frequency electronic physiotherapy machines. Help to improveblood circulation, promote metabolism and eliminate fatigue. Self adhesive and reusable pads. Daily personal care. Type: ElectrodePads Material:Non-woven Fabric Connection Way:Wires Inserted Needle Wire PortDiameter: 2.0mm Size: 4cm x 4cm Packing: 10packages (20 pieces) 1. Non-woven fabric electrode pads 2. Self adhesive, re-usable and long lasting 3.Bio-degradable 4. Lower impedance and uniform distribution, 5. No hot spots,more stimulation comfort. 6. Durable construction:can pull out from the lead wire without damage. 7. Speciallydesigned holes on each pad release the heat and give you morecomfort and less irritation.