The product is a lot of 15 Pyrex VWR laboratory glassware volumetric flasks and Erlenmeyer flasks, specifically the 1000ml size. These flasks are used in various industries, particularly in the healthcare and lab research sectors. The Pyrex brand is known for its high-quality glassware, making these flasks reliable and durable for precise measurements and experiments. The set includes a combination of volumetric flasks and Erlenmeyer flasks, providing versatility in different laboratory applications.