Septa Size: 8*1.5mm Cap Features: 5.5mm Centre Hole or Closed Top Color: Black, White or Customized Get Price Details 10-425 Screw Neck 2ml HPLC Autosampler Vial Volume: 1.5-2.0ml Dimension: 11.6x32mm Color: Amber and Clear Neck: Screw neck Neck Diameter: 10mm Material: Brosilicate Glass/1st hydrolytic class glass