Sterile and disposable needle electrodes with low impedance and retractable baby blue safety cap by The Electrode Store. 12mm (0.5"), 29 gauge uncoated steel cone-sharpened, with 0.9m (36") lead-wire, 1.5mm touch proof safety socket. For neonatal to adult EEG or aEEG. Single patient use. 3 year shelf life. PRO-E3 was previously sold as part number 62056 (or 62057). (3 subdermal needle electrodes per pack (black, yellow, and red); 10 packs per box)