Amazon.com: 3M Littmann Cardiology IV Diagnostic Stethoscope, Rainbow-Finish Chest Piece, Black Tube, Stem and Headset, 27 Inch & Classic III Monitoring Stethoscope, Rainbow-Finish, Caribbean Blue Tube, 27 Inch : Industrial & Scientific
3M Littmann Stethoscope Spare Parts Kit, Cardiology S.T.C, Black, 40019 : Amazon.de: Business, Industry & Science
Amazon.com: 3M Littmann Cardiology IV Diagnostic Stethoscope, Rainbow-Finish Chest Piece, Black Tube, Stem and Headset, 27 Inch & Classic III Monitoring Stethoscope, Rainbow-Finish, Caribbean Blue Tube, 27 Inch : Industrial & Scientific