The SN2040 is a high-quality electrode designed for medical and therapeutic use. It features a 2” x 4” rectangular shape with a single snap design for easy attachment and removal. This electrode is packaged in sets of 4 per pack, with 10 packs per bag, and 1 bag per case. Its versatile design makes it suitable for various applications, ensuring reliable performance every time. Please note that it’s crucial to replace electrodes periodically to maintain their effectiveness and your comfort.