Recommend UseResting EKGBacking Paper - Low cost for resting EKG testsAdhesive AQUA-TAC - Solid adhesive gel electrodes add the benefit of 100% skin surface contact. It leaves no residue upon removal.ConnectorTabSizeAdultPackaging100/Pouch, 1000/Box, 4000/Case - Sold by the boxComparable To:Burdick 047886, 047029 CardioSens UltraKendall-LTP CA-510, QT 5500Nikomed 0615, 0715 ...