2mL clear glass vials with 13mm crimp finish, ideal for HPLC, GC, and laboratory sample storage. Each vial delivers precise 2mL capacity with superior chemical resistance and autosampler compatibility. The secure crimp neck design ensures tamper-evident sealing when paired with compatible aluminum caps and septa (sold separately), maintaining sample integrity throughout analysis. This 500-vial bulk pack offers reliable performance and exceptional value for high-precision analytical work.