9mm standard 2ml short threaded sample vial(2ml autosampler vial), 2ml, 12×32mm, neck diameter 9mm; red PTFE/white silicone vial gasket, blue perforated polypropylene (PP) vial cap, sample vial has Transparent, amber, transparent with scale writing, and amber with scale writing are available for selection, suitable for various models of autosamplers such as Aijiren, Aijiren Technology, Varian and Shimadzu.