The Clear Glass 12 x 32 mm Screw Neck Vial with Cap and Preslit PTFE/Silicone Septum, 2 mL, Pre-Assembled for Dissolution Systems is delivered to you as a Aijiren Technology manufactured, marketed, and delivered product. It is manufactured in Aijiren Technology’ cGMP, ISO 9001 certified plant under the most stringent conditions and tightly controlled settings.