Product Description MicroGen TENS Pads HeaWea Tens Pad 50mm wide with a 2mm plug: Self-adhesive, reusable electrodes 20 pieces Standard size 50mm in width With a 2mm plug The newly developed carbon film with extremely low impedance values ensures the efficient transmission of the stimulation impulses. Caution: People with cardiac conditions and/or pacemakers, and pregnant women should consult their doctors before using MicroGen TENS pads. Note: Please replace TENS pads regularly to make sure they have good contact with the skin.