Vial insert, 200 µL measured fill (150 µL recommended), pulled point glass, for 2 mL standard opening (8 mm) screw top vials, 100/pk Insert size: 4.8 x 31 mm. See all product information. In Stock. . Vial insert, 200 µL, glass, flat bottom, for 2 mL standard opening vials, 100/pk.