2ml Crimp Top HPLC Vials for Autosampler--Aijiren HPLC 1.5mL 11mm Crimp Ring Autosampler Vial ND11 Dimension 11mm Cap Color Silver Septa details White, Red,1mm thickness. Material Aluminum for Cap, PTFE/Silicone for Septa Package 100pcs/Pack Cap type Open top Septa type Non-slit, Pre-slit