Experience precision with the Pyrex USA 500ml Volumetric Flask, a must-have for any laboratory setting. The flask, marked with the unique identifier No. 5660 Size 19, is designed to meet the rigorous standards of scientific research and educational institutions. Its durable construction ensures repeatable measurements, making it an essential tool for chemistry and biology students, as well as professional scientists. The flask features a graduated scale, allowing for accurate volume measurements in milliliters. Crafted by PYREX, a trusted name in laboratory glassware, this flask is known for its clarity, resistance to breakage, and ease of cleaning. Whether you're mixing reagents, storing samples, or performing experiments, this volumetric flask is a versatile addition to your lab equipment.