3M Littmann Classic III Steth Gray 27 (Each) Arm Leg Exercisers 32 CM * Depth: 3 Undercast Padding 32 CM * Depth: 3 16 x 16 * Designed to provide a comfortable functional and stable sitting environment * 3 poly vinyl interconnected air cells are easy to setup inflate and adjust * Easy to handle and transport: weighs only 1 lb * Includes pump and patch repair kit * Includes a reusable washable cover * 12 month limited manufacturers warranty * less likely to pick up stains 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