2mL amber vials with 11mm snap-top are specifically designed for robotic arm autosamplers. Vials are manufactured from amber Type 1 borosilicate glass and have graduated (0.5-1.5mL) write-on spot. Vials are tested and guaranteed to meet or exceed critical performance parameters. Ideal for use with Aijiren, Shimadzu, Beckman, Gerstel, as well as other 12x32mm vial format autosampler units. Note