aijiren Vial insert, 200µL, glass, flat bottom, for 2mL standard opening (8mm) screw top vials, 100/pk Insert size: 4.8 x 31mm aijiren Vial insert, 200 µL, glass, flat bottom, for 2 mL standard opening (8 mm) screw top vials, 100/pk Insert size: 4.8 x 31 mm..