Littmann Classic III Adult Stethoscope (Turquoise Tubing)TraTwo sided chestpiece with tunable diaphragms on both the adult and pediatric sides. Single piece tunable diaphragm is easy to attach, and easier to clean because its surface is smooth without crevices. Pediatric side converts to a traditional open bell by replacing the single piece diaphragm with a non chill rim. Next generation tubing provides longer life due to improved resistance to skin oils and alcohol; less likely to pick up stains. Small