Wide opening enables easy filling with viscous materials. aijiren Techbrand™ 9mm Short Thread TPX Vial with integrated Glass Micro-Insert. Universally compatible on almost all autosamplers. aijiren Techbrand™ 9mm Short Thread Vial Kit, PP, Clear, 1.5mL, PP Screw Cap, Center Hole, Silicone/PTFE Septum.