3M Littmann Classic II Pediatric Stethoscope is made with a two-sided chest piece that has a traditional bell/diaphragm. These Professional Medical Grade Stethoscopes are designed and sized to provide Littmann Stethoscope classic quality acoustics for children. The Littmann Classic II Pediatric Stethoscope manufactured by 3M features a 1-inch traditional bell combined with a floating diaphragm. This stethoscope features a solid stainless steel chestpiece for high acoustic sensitivity. 3M Littmann Classic II Pediatric Stethoscope Features & Benefits: One-inch traditional bell pediatric stethoscope combined with a floating diaphragm. Littman Classic II Stethoscope with stainless steel chest piece. Excellent acoustic seal and comfortable fit with patented 3M Littmann Snap Tight Soft-Sealing Ear-tips. Comfortably angled, anatomically correct headset. Single-lumen tubing is available inattractive colors.