Thermo Scientific 11mm Silver Aluminum Crimp Cap, PTFE Use Thermo Scientific 11mm Clear Glass Crimp/Snap Top Vials with snap caps or aluminum crimp seal closures. These high-quality 11mm clear glass vials are 2mL, 12x32mm and fit most brands of Wide opening snap cap vial closures, Target® Snap-It™ | VWR Wide opening snap cap vial closures, Target® Snap-It™.