1.5ml 10mm Sample Vial Label and Filling Lines-Aijiren HPLC Vial. Clear glass vials and caps with pre-inserted PTFE/silicone septa for ease of sample preparation. Vial size is 2x32 mm, with a writing patch on the side. .5mL short thread vial, st hydrolytic class, wide opening, label and filling lines with red cap and pre-inserted.