3M Littmann Classic III Steth Burgundy 27 (Each) Stair Chairs ORTHOPEDIC & SPORTS MEDICNE * 151146 ORTHOPEDIC & SPORTS MEDICNE * 30 lbs * Measure tip key and palmer pinch strength in both pounds and kilograms * Measurements are accurate and repeatable * Results are consistent with published Markowitz studies * Indicator remains at the maximum reading until reset * Comes with protective case * s position over time Two 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