3M™ Littmann® Cardiology IV™ Stethoscope, 6165, Rainbow-Finish Chestpiece, Black Tube, Black Stem, 27 in, 3 Each/Case | 3M Singapore
Littmann Cardiology IV Stethoscope - Black & Polished Rainbow Finish | Superior Acoustics for Critical Care - WiZmed SA
Amazon.com: Durabasics Classic 3, Cardiology 3 & Cardiology 4 Stethoscope Accessories Kit for Littman Stethoscope Replacement Parts & Littmann Stethoscope Parts - Fits Classic III, Cardiology III & IV - Black : Industrial & Scientific