Compatible with 3M Littmann Classic III Stethoscope | 3M Littmann Cardiology III Stethoscope | 3M Littmann Lightweight II S.E. Stethoscope | 3M Littmann CORE Digital Stethoscope | MDF MD One Stainless Steel Premium Dual Head Stethoscope | 3M Littmann Classic II S.E. Stethoscope | 3M Littmann Master Cardiology Stethoscope and other nursing tools.
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