Insertion Tube: Outer Diameter 3.6mm. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. The item "Olympus ENF-P3 Fiber RhinoLaryngoscope 0 Broken fiber" is in sale since Thursday, March 14, 2019. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Handpieces & Instruments\Endoscopes".The seller is "medical-endoscopy-fiber-king" and is located in Baltimore, Maryland. This item can be shipped worldwide.