Amazon.com: 3M Littmann Stethoscope, Cardiology IV, Black Tube, Black Chestpiece, 27 Inch, 6163 & Classic III Monitoring Stethoscope, Black Edition Chestpiece, Black Tube, 27 Inch, 5803 : Industrial & Scientific
MDF Instruments® Stethoscope ProCardial® Titanium Cardiology Galaxy and BlackOut