Replacement Tube for Littmann Cardiology Stethoscope ( Black ) | Link in Description - YouTube
Stethoscope Tubing Fits Littmann Classic II SE 14 Color Choices Purple for sale online | eBay
Amazon.com: (Stethoscope Binaural) Replacement Tube by Reliance Medical fits Littmann® Classic II Pediatric, Classic II SE, Select, Master Classic II, and Infant Stethoscope - Light Blue TUBING : Industrial & Scientific