1.8 mL amber graduated crimp top vial, 12x32 mm. Made of type 1 borosilicate glass. The marking spot has graduations to show approximate volume. Compatible with most GC and HPLC autosamplers using 12x32 mm (1.8 mL) vials. Amber is used for light-sensitive materials.Packaged: 5 in. x 4-1/4 in. x 1-1/4 in. plastic box; Weight: 272.1 g.