2" x 4" - StimChoice Premium Quality Electrodes - 20 CountStimChoice Premium Quality Electrodes provide an excellent quality electrode and are affordable. The pig-tail style lead wire interface was designed to optimize current distribution across the pre-gelled self-adhesive pad. These medical-grade over-the-counter (OTC) TENS electrodes are reusable and come in a double sealed, resealable package to help prolong the life of each electrode. StimChoice electrodes are durable, do not contain natural rubber latex and can last for multiple applications to the skin.