Made from Borosilicate Glass, that is resistant to thermal shock and a good fit for any laboratory, science classroom, or homeschool. The flask has thick walls, graduations, and a white marking spot. A size 6.5 rubber stopper fits this flask.

These Erlenmeyer flasks have a narrow mouth, a tooled top finish, and are graduated. This 500ml capacity flask is made of quality borosilicate glass that is resistant to thermal shock and a good fit for any laboratory, science classroom, or homeschool. The flask has thick walls, graduations, and a white marking spot. A size 6.5 rubber stopper fits this flask.