The Kimble Kimax Glass 250mL Graduated Filtering Flask with Tubulation is a high-quality laboratory glassware item made in the United States. This flask is perfect for various scientific disciplines such as physical, dental, medical, microbiological, and biological laboratories. It is designed with a 250mL volume and features a sidearm for easy filtration. The borosilicate glass material ensures durability and resistance to thermal shock, making it a reliable choice for laboratory experiments and research.