11mm Crimp Cap Vials VIAL : 2ml, 12 X 32mmCrimp Top Vial. Clear or Amber GlassBorosil Crimp Vials are made to exacting dimensions for unparalleled autosampler compatibility including a precision-formed crown for better crimping.THE CLOSURE :Crimp caps ensure the tightest seal reducing the possibility of sample evaporation The 12 x 32 mm Crimp Vials and 11 mm aluminium crimp caps are economical