"<p><b>There are three different plug sizes available. Be sure to choose the correct plug size for your device.</b></p>Two high-quality Tens electrode lead wires by Discount TENS.</p> <p>These durable lead wires each use the standard (headphone size) <b>3.5mm plug</b> to TWO 3.5mm snap connectors.</p> <p>Note: Make sure that your device uses the 3.5mm standard headphone size plug. If your device has the smaller 2.5mm port, we offer these on Amazon as well. <p>Used for electrode pads that accept the industry standard 3.5mm snap connector.</p> <p>This lead wire is compatible with all TENS / muscle stimulator devices that use the industry standard 3.5mm headphone size plug.</p> ¥ EliKing<br> ¥ HealthmateForever<br> ¥ HiDow<br> ¥ IQ Massager<br> ¥ Irest<br> ¥ iSmart<br> ¥ Magic Massage<br> ¥ Magic Masseuse<br> ¥ MassagePod<br> ¥ Palm Massager<br> ¥ Pinook<br> ¥ Smart Relief<br> <br> And all others that utilize the standard 3.5mm plug."