Silanized - 2.0mL LO (Large Opening) Clear Type I Borosilicate Glass Vial, 12x32mm, with White Graduated Spot, 11mm Crimp. 40% Larger opening prevents broken needles due to increased target area. Neck finish allows use of patented Poly Crimp™ Seals or standard aluminum seals. Designed to work in Agilent and other autosamplers.