Compatible with most GC and HPLC autosamplers requiring 1.8 mL, 12x32 mm vials. 1.8 mL amber standard-mouth screw-top vial, 12x32 mm. Type 1 borosilicate glass. Uses 8 mm, 8-425 thread caps. Amber is used for light-sensitive materials.Packaged: 5-1/8 in. x 4-1/2 in. x 1-3/8 in. plastic box; Weight: 272.2 g.