Ltpgtset of 4 round tensems machine electrodes self adhesiveltpgtltpgtso you will receive a total of 4 electrode pads which will fit most types of tensems machines on the marketltpgtltpgtthese electrodes will fit all lead wires that have pin connectors with diameters of 196mm to 204mm which basically covers all lead wires on the market with the pin connectionltpgtltpgtthey fit the majority of machines sold by lloyds boots bodyclock babycare neurotrac