1/2 Dram vials are clear with black cap, an excellent fit for the small soft bodied insects in your insect collection. Capacity: 1/2 Dram (1/16 ounce, 1.9 ml) Size: 12 mm x 35 mm (.47 x 1.37 in.) Orifice Opening 4.5 mm Cap Finish: 8-425 Color:...