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
3M Littmann Master Cardiology Stethoscope, Black Tube with Standard Finish, 27"
3M Littman Cardiology IV Stethoscope
Littmann Cardiology IV Diagnostic Stethoscope: Smoke & Caribbean Blue