Vial Only, no caps or septa. Vial: 10mL Headspace vial only, Screw Cap Style, clear glass, flat bottom, Dimensions: 10mL, 46 x 22.5mm, Package Size: 100/pk For use with AOC-5000 and AOC-6000. Flat bottom vials are not to be used with HS-10 or HS-20. Use part number 220-97331-09 for HS-10/20.