May 28, 2021 · 2021-05-28. Aijiren Amber Glass Flat Base Vial, mm Wide Opening Crimp Color: Amber with label mm Wide Opening Crimp Top Autosampler Vials are made of clear Type , Class A Borosilicate Glass with a writable label for sample identification. 2ml Amber autosampler vial,2mm Diameter, 32mm Height Optimal design for Robotic Maneuverability,Wider mouth