The Brand New Littmann Classic III Black Tube Black Edition 27" is a high-quality medical tubing product manufactured by 3M. This stethoscope part is designed for various medical disciplines such as Pediatrics, Nephrology, and Cardiology, among others. Made in the United States, this unit offers a total of 20 pieces of tubing in the packaging. The Littmann Classic III Black Tube Black Edition is a reliable and durable accessory for healthcare professionals in different medical settings.