Professional Cardiology Stethoscope Purple, Life Limited Warranty Specification: Professional Cardiology stethoscope. Deluxe zinc single head, special design of head for better sound. Light copper binaural. Chest piece comes with non-chill ring. Soft ear - tips with inner spring binaural tubing assembly. Special design of binaural for suiting the ear structure Additional spare membrane and different size ear tips. Length: 27" Diameter of membrane part 1.75" Poopyz is a distributor of medical devices , located at Jamaica , NY 11435, Please call 718-313-8739 (Igor) 9am-5pm, Mon-Fri, New York Time "The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item." If you have questions about legal obligations regarding sales of medical devices, you should consult with the FDA's Center for Devices and Radiological Health: http://www.fda.gov/cdrh/devadvice/ http://www.fda.gov/cdrh/industry/support/index.html Phone number: 800.638.2041