Including: 100pcs Clear/amber bottles 32×11.6mm made of borosilicate glass, 2ml lab vials 9-425 screw thread, Flat base Sample Vials; Made out of USP TYPE I Glass. Micro vials are designed to assist in the consistent sampling of low-volume chromatography samples. Diameter (Metric) Outer: 11.6 mm ... Micro Insert Suit for 9mm HPLC Vials ...