General description. Pre-Assembled Vials Kit. 4 mL clear glass vials with 0.30 mL inserts. Includes each of the following: screw top vials, 15 × 45 mm, 4 mL (27111) glass inserts, 0.30 mL clear glass, conical (27118-U) bottom springs for inserts (27086-U) closures, open top, phenolic, black (27120-U) septa, red PTFE/red rubber (27101)