Packaging Details Vials: 100pcs/pack, 50packs/ctn (0.04CBM/ctn, 15.5KGS/ctn) Closures: caps and septa are pre-assembled, 100pcs/pack, 100packs/ctn (0.025CBM/ctn, 5KGS/ctn) Aijiren 2ML Crimp Mouth HPLC Vials is used for pre-sampling for chromatography solutions.is used for pre-sampling for chromatography solutions.