It is made from high-quality clear Boro 3.3 glass, offering excellent durability and resistance to chemicals and temperature changes. This Class A volumetric flask features a trapezoidal shape for precise volume measurements and a NS 07/16 neck for compatibility with standard laboratory glassware. The PE stopper provides a secure seal, while the blue scale ensures easy and accurate reading. Batch identification adds traceability to each flask. Sold in a pack of 2, it is an essential tool for small-volume, precise liquid measurements in laboratory applications.