Description Screw top vial, 2mL, Clear Screw top vial, 2 ml polypropylene, with 0.2 mL integrated glass insert Screw cap, PTFE/silicone septa Screw cap, Pre-slit PTFE/silicone septa Crimp top vial, 2ml , Clear Crimp cap, Silver aluminum, PTFE/silicone septa 7mm Crimp top vial, 0.8ml 8 mm crimp caps with PTFE/silicone septa Blue polyethylene cap