3M™ Littmann® Stethoscope Binaurals for Master Cardiology™, Cardiology III™, Cardiology II S.E. and Cardiology S.T.C. Stethoscopes, Navy Blue Tube, Grey Eartips, 27 inch - SAVELIVES
Parts and Accessories by 3M Littmann Classic III, Cardiology IV & CORE Stethoscope Spare Parts Kit | AllHeart.com