Light Gray colored Luer Lock hub with a 28 gauge blunt tip. The Inside Diameter is 0.007” (0.190 mm) and the Outside Diameter is 0.015” (0.390 mm). Our 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. Available in boxes of 50 or bags of 1000.