External dimension: 11.2 x 4.56 x 2.64 inch, Internal dimension:10.55 x 3.94 x 1.97 inch.
Compatible stethoscope model:
3M Littmann Cardiology III Stethoscope,
3M Littmann Classic III Stethoscope,
3M Littmann Lightweight II S.E. Stethoscope,
3M Littmann Classic II S.E. Stethoscope,
3M Littmann Master Cardiology Stethoscope,
3M Littmann 6154 Cardiology IV Stethoscope,
MDF MD One Stainless Steel Premium Dual Head Stethoscope,
Omron Sprague Rappaport Stethoscope Pen Lights Reflex Hammer and many more.