1.8 mL amber snap/crimp top vial, wide mouth. 12x32 mm. Type 1 borosilicate glass. Recommended for short-term sample storage, such as for autosampler use within two days; the seal is not as tight as wtih screw caps. Amber is used for light-sensitive materials.Packaged: 5 in. x 4-3/8 in. x 1-3/8 in. Plastic box; Weight: 272.2 g.