The KIMAX Glass 250mL Plain Heavy Wall Filtering Flask with 10mm sidearm tubulation is a high-quality laboratory glassware piece designed for various scientific applications. Made from borosilicate glass in the United States, this flask features a 250mL volume capacity and a 10mm outer diameter tubulation for easy filtration. Ideal for use in physical, dental, medical, microbiological, and biological laboratories, this flask is a versatile and reliable tool for researchers and professionals in the scientific community.