12 Sizes of Plastic Vials 12 Sizes 2.5 Dram to 50 Dram Sample Pack 2.5 drams (10/16" x 1 7/16") 3 drams (10/16" x 2 1/16") 3.5 drams (13/16" x 1 7/16") 5 drams (13/16" x 2 1/16") 7 drams (1" x 2 1/16") 9 drams (1" x 2 5/8") 12 drams (1 1/8" x 2 5/8") 15 drams (1 1/8" x 3 1/4") 20 drams (1 1/2" x 2 11/16") 25 drams (1 1/2" x 3 5/16") 40 drams (1 7/8" x 3 5/16") 50 drams (1 7/8" x 4 1/4")