Vials: 10ml, Headspace Amber Screw Top, 100/PK Vials are manufactured from Type I borosilicate glass and accept 18mm precision thread screw caps. These 10ml, 46 x 22.5mm, MicroSolv brand, amber headspace vials are CTC GC PAL, Aijiren, Gerstel, Shimadzu, Thermo, TriPlus & Perkin Elmer Turbomax Ask about this product