5. Cork Stopper Vial Set. Most economical, straight-sided, flat bottom, glass shell vial with high quality cork closures. Ideally suited for storing small parts, geological specimens, soil and many other types of samples. Vial size 3 dr (10.4 ml), 12 mm dia x 114 mm H, arrangement 5 x 20. Tray size 11½" x 3" x 5"