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 1.0m (40") lead-wire, safety socket. For neonatal to adult EEG or aEEG. Single patient use. 3 year shelf life. PRO-E5 was previously sold as part number OBM00046. (24 needles; 4 subdermal needle electrodes per pack (2 black, 2 violet); 6 packs per box).