Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Threaded chestpiece drum of chrome plated zinc permits the use of five interchangeable chestpiece fittings - an adult and pediatric diaphragm, and three bells (11/4", 1", 3/4") - for complete diagnostic capability in most patients * Latex-free, double tube configuration * Proprietary valve mechanism eliminates acoustic leakage * Adjustable chrome-plated brass binaurals * Complete with an accessory pouch containing the bell chestpieces, chestpiece key, 2 spare diaphragms, one pair of mushroom eartips, and one pair of silicon eartips * Inspected and packaged in the U.S.A. * Weighs 8 oz. * Overall length 30" * 5 Year Warranty