Two-sided models with traditional bell/diaphragm chestpieces are designed, sized and acoustically precise for children and infants. Feature patented Littmann Snap Tight soft-sealing eartips plus patient-friendly nonchill rim. Three-year warranty plus a lifetime service and repair policy.- Pediatric Stethoscope, 28" Caribbean Blue Tubing (Continental US+HI Only) (Littmann items are only available for sale online by distributors authorized by 3M Littmann)