This 3M Littmann Classic III stethoscope chestpiece is the perfect addition to your medical equipment. The black matte finish adds a sleek touch to your instrument collection. Made with stainless steel and rubber materials, this chestpiece is durable and designed to last. The item model number is 5803, and it is compatible with the Littmann Classic III stethoscope. This chestpiece is ideal for use in various medical disciplines, including neurology, pediatrics, emergency medicine, radiology, oncology, internal medicine, dentistry, anesthesiology, cardiology, general surgery, endocrinology, and family medicine. It has a product dimension of 27"L x 27"W and is made in the USA.