3M™ Littmann® Stethoscope Binaurals for Master Cardiology™ , Cardiology III™ , Cardiology II S.E. and Cardiology S.T.C. Stethoscopes, Black Tube, Black Eartips, 27 inch - SAVELIVES
Amazon.com: 3M 2176 Littmann Master Cardiology Smoke Chestpiece Stethoscope with 27" Black Tube : Industrial & Scientific
3M™ Littmann® Lightweight II S.E. Stethoscope – BV Medical