Crimp vial convenience kits include crimp-top vials, caps, and septa fabricated from various materials. 11 mm orifice. Crimp-top vial. Clear or amber color. PTFE/natural rubber/silicone septa. Vials have a 2 mL capacity. Packaging: Vials packaged in a clear-lid tray. Caps with septa packaged in a plastic bag. New Product.