The Sprague-Rappaport stethoscope from Prestige Medical has a five-in-one design. It's no wonder it's the most widely used stethoscope in the healthcare industry. It comes with a set of interchangeable parts to customize to the user's needs. Features dual 22" PVC tubing for clear sound transmission and threaded soft eartips. This stethoscope is designed to last, with a chestpiece made of rugged chrome plated zinc alloy and binaurals made of chrome plated brass. This stethoscope comes with a lifetime limited warranty and lifetime replacement parts.