Clear colored Luer Lock hub with a 27-Gauge blunt tip. The Inside Diameter is 0.008" (0.203mm) and the Outside Diameter is 0.016" (0.406mm). Jensen Global NT Series Premium polished tips feature a polypropylene plastic double-helix hub with a UV-bonded stainless steel cannula. The burr-free tip design allows for precise dispensing with no residuals.