Micro Vials with Screw thread ND9 in glass as well as polypropylene with conical & flat bottom inserts. Product Specification : Micro Vial clear glass with 0.2ml integrted insert. Micro Vial Amber glass with 0.2ml integrted insert. Micro Vial polypropylene, with integrated 0.2 mL insert, conical. Additional Information: Production Capacity