MDF Instruments® Stethoscope ProCardial® ERA® Purple and Black Cardiology
Amazon.com: MDF Acoustica Lightweight Stethoscope for Doctors, Nurses, Students, Home Health Use, Adult, Dual Head, Black Tube, Black Chestpiece-Headset, MDF747XPBO : Industrial & Scientific
MDF MD One® Stethoscope - Black / Whiteout
Acoustic XP Stethoscope Adult MDF Instruments, handcrafted, model MDF747XP, Napa | eBay