SHIPS THE SAME DAY with FAST FIRST CLASS SHIPPING WITH USPS!  BIO PROTECH, PRO-TAB DISPOSABLE EGG PADS PT2334 (500/PACK) PROTAB ECG Tab Electrodes are self-adhesive, non-sterile, single use disposable electrodes for diagnostic resting ECG ECG Tab electrodes are composed of a PET tape, Ag/AgCl ink and a conductive gel These are configured as 10 (ten) electrodes applied to a siliconized transparent PET card, ten cards per pouch Designed for diagnostic resting ECG use Provides accurate, fast and clear tracings Compatible with all machines 23mm x 34mm