Vials, open-top screw cap, 2 mL large opening with closures, unassembled convenience packs volume 2 mL, clear glass vial, thread for 10-425, black polypropylene cap, PTFE/rubber septa, pkg of × 100 ea : 2 mL : thread for 10-425: 12 mm × 32 mm × 6 mm : PTFE/rubber septa black polypropylene cap clear glass vial: pkg of × 100 ea