Nalge Nunc Volumetric Flasks with Screw Cap, Polypropylene, NALGENE 4000-0100, Each

The wide-mouth design provides a smooth easy filling and pouring experience. Ergonomic ridges on the neck of the vessel provide added user comfort. The necks of these volumetric flasks are KD crimp-faced and made from a high-quality natural unlined polyethylene which is nearly unbreakable.