EMI's Pro Sprague Rappaport Stethoscope has a threaded chest piece drum that permits fine interchangeable chest piece fittings, an adult and pediatric diaphragm, and three bells. It has a double-tube configuration that allows for improved acoustic separation and adjustable chrome-plated binaural. The Pro Sprague accessory kit contains three bell chest pieces, two spare diaphragms, and a pair of mushroom and silicon ear tips. 
 
Size: 29 1/2" L x 3" W x 1 1/4" H
Weight: 7 oz