This PYREX 500 mL Erlenmeyer Flask, with No. 4980 Stopper No. 7, is a high-quality glassware laboratory item, made in the United States. The flask is suitable for use in a variety of scientific experiments and tests. It is branded PYREX and is Non-Domestic, meaning that it is not made for everyday household use. This flask type is specifically an Erlenmeyer Flask, which is a conical flask that is used for a range of laboratory applications. The model number is 4980 and the bundle does not include any other accessories or items.