McCoy Medical: Binaural Assembly for Classic II and III S.E., Pediatric and Infant, Select and Original Lightweight Stethoscope : 707387216023 : Littmann : Products : Stethoscope Parts : Binaurals
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 Pink TUBING : Industrial & Scientific