STETHOSCOPE, SPRAGUE RAPPAPORTR BLU McKesson LUMEONâ„¢ Sprague Rappaport Scope - Royal Blue Convertible chestpiece permits the use of five interchangeable chestpiece fittings -- an adult and pediatric diaphragm, and three bells (1-1/4 inch, 1 inch, 3/4 inch). Patented valve mechanism virtually eliminates acoustic leakage. Chestpiece key facilitates diaphragm replacement. Gasket-sealed system for improved acoustics. Double-tube configuration in 22 inch length for improved acoustic separation. Adjustable chrome-plated binaurals. Complete with an eight-piece accessory kit. Weighs 6 oz. Overall length 30 inches. 5-year warranty. Not Made with Natural Rubber Latex. Packaged: Each WARNING: This product can expose you to di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.