Vials, Closures And Inserts. 2ml Crimp / Snap Vials and Cap / Septa. CCI TM has wide offering of 11mm glass / PP vials, inserts and closures. 11mm crimp vials are the preferred choice for many GC applications. Can be used for wide range of HPLC systems too. Known as single use crimp / Snap vials and cap / septa give extra ordinary result.