Pyrex 250ml Flat Bottom Boiling Flasks Set Of 5 (Set1)

These Pyrex 250ml flasks are perfect for lab and medical use. With a round bottom design, it allows for easy pouring and is ideal for boiling liquids. The flask is made of high-quality glass and has a capacity of 250ml. It is suitable for a variety of applications and is a great addition to any lab. The flask conforms to standard 24/40 thread sizes and is compatible with a variety of glassware and equipment. Whether you're measuring chemicals or conducting experiments, this flask is a reliable and accurate choice. One has a stopper in that we were unable to get out. A little writing in 2 of them. See pictures.