Product information: 3M Littmann Pediatric Stethoscope 2113, 28 inch, Black Dual-sided chestpiece with small 3.3cm diaphragm is ideal for pediatric patients Versatile chestpiece design provides high acoustic sensitivity with both a floating diaphragm and open bell Non-chill rim and diaphragm provide patient comfort Soft-sealing eartips Salient features of 3M Littmann Pediatric Stethoscope 2113, 28 inch, Black: - One-inch traditional bell (pediatric) and 3/4 inch bell (infant) combined with a floating diaphragm - Stainless steel chestpiece - Excellent acoustic seal and comfortable fit with patented 3M Littmann Snap Tight Soft-Sealing Eartips - Comfortably angled, anatomically correct headset - Single-lumen tubing is available in attractive colors.