Amazon.com: 3M Littmann Stethoscope, Master Classic II, Black Tube, Black Chestpiece, Black Eartubes, 27 inch, 2141 : Industrial & Scientific
3M Littmann Master Classic II 27" Stethoscopes - For Sale — Integris Equipment LLC
3M Littmann Master Classic II Stethoscope - 27 Length - Color Choice - Latex Free
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3M Littmann Stethoscope, Master Classic II, Black Tube, Black Chestpiece, Black Eartubes, 27 inch, 2141 | Stethoscope, Littmann stethoscope, Medical supplies