Amazon.com: Compatible Replacement Tube by CardioTubes fits Littmann(r) Classic II SE(r) standard Stethoscopes - 5mm SKY BLUE TUBING : Industrial & Scientific
Amazon.com: 3M 2119 Littmann Classic II Pediatric Stainless Steel Chestpiece Stethoscope with 28" Caribbean Blue Tube : Industrial & Scientific
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
Ceil Blue Littmann – Best Ortho NYC
Infant Stethoscope - 30.5" L | CeilBlue
3M Littmann Select Stethoscope Choose Color
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
3M Littmann Lightweight II S.E. Stethoscope, Ceil Blue Tube, 28 Inch, 2454 & Lightweight II S.E. Stethoscope, Burgundy Tube, 28 inch, 2451: Amazon.com: Industrial & Scientific
Littmann Classic III Stethoscope, Caribbean Blue, 5623 - Stethoscope.com