Spare Parts Kit for 3M Littmann Stethoscopes, Classic II Infant Assembly, 40013Littmann Stethoscopes Spare Parts Kit The 3M Littmann Stethoscope Spare Parts Kit, Classic II Infant Assembly, 40013, is a must have accessory for healthcare professionals who use the Classic II Infant Stethoscope. This kit provides all the essential parts to keep your stethoscope in top working condition, ensuring you have the tools you need to provide proper and effective care to your patients. The Spare Parts Kit includes an infant sized chest