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There is NO SHIPPING DELAY to have your stethoscope laser engraved.
Shipping warehouse closed weekends and holidays. If an order is placed over the weekend, it will ship Monday.
3M Littmann Stethoscope Spare Parts Kit for the Cardiology S.T.C. stethoscope contains a black rim and tunable diaphragm for chestpiece, in addition to two small (1/2 inch), black Snap Tight Soft-Sealing Eartips.