3M Littmann Classic III Monitoring Stethoscope, Black Tube, 27 inch, 5620: Amazon.com: Industrial & Scientific
Amazon.com: PrimaCare DS-9290-BK Adult Size 22" Stethoscope for Diagnostics and Screening Instrument, Lightweight and Aluminum Double Head Flexible Stethoscope, Black : Industrial & Scientific
Amazon.com: 3M 2114 Littmann Classic II Infant Stethoscope, Black Tube, 28" : Industrial & Scientific