The StimTrode Electrode is a high-quality electrode designed for optimal performance in various therapeutic applications. This product features a 2¾” round shape and comes in a pack of 4. Each case contains 10 packs, and each pack is bagged for convenience and easy storage. The StimTrode Electrode is perfect for delivering a uniform current distribution that ensures comfortable and effective stimulation. Please note that this product is for single patient use only.