2ml clear autosampler vial, 32mm height, 9-425 screw top, 12mm diameter, and included blue ABS Screw Cap & Septa PTFE/silicone septa and clear Bevelled bottom Micro-Insert 31*6mm. Standard autosampler vial for hplc & GC Chromatography, vials can be used for high performance liquid chromatography and gas chromatography for reliable analysis results.