6 mL, 23x38 mm, clear flat bottom headspace vial with beveled lip (for tighter seal) and flat bottom. Type 1 borosilicate glass. Use standard 20 mm aluminum crimp caps and seals.Packaged: 10-1/4 in. x 8& in. x 1-3/4 in. Cardboard box; Weight: 884.5 g.