Case Only! (Stethoscope and other accessories are not included). LARGE & VERSATILE SIZE: Outer: 11.82" L x 4.92" W x 2.37" H; Internal Dimension: 11.0" L x 4.33" W x 1.97" H, larger than most others. Compatible with 3M Littmann Classic III, Lightweight II S.E, Cardiology IV Diagnostic, and many more along with a variety of nurse accessories like blood pressure cuff, penlight, pulse oximeter, percussion hammer, reflex hammer and more