Sun Sri Clear Glass 8-425 Screw Thread Standard Opening Vials, 1.5ml Capacity, 12mm I.D. x 32mm H (Pack of 100) Vials feature a nominal 5mm diameter opening and 12x32mm profile to fit many autosamplers, 8-425 vials are especially suitable for most instruments where the vial remains in the sample tray during injection, Manufactured from clear, Type 1 Class A or amber, Type 1