It is crafted from high-quality amber Boro 3.3 glass, ensuring superior chemical resistance and thermal stability. This flask is Class A certified, providing precise and accurate liquid measurements. With its NS 14/23 neck size, it is compatible with various laboratory glassware and includes a PE stopper to securely seal the contents. The white scale allows for easy visibility of 50 mL measurements, and batch certification ensures traceability for quality assurance. This pack of 2 flasks is ideal for small-volume applications in laboratories, research, and educational settings.