Erlenmeyer Flask Set, 50, 125, 250, 500 and 1000ml with Matching Stoppers

The quality of this 5 flask set well-exceeded my expectations. The glass material was thicker and stronger than expected based on the great price. Definitely a great value. Highly recommend for both professionals and hobbyists.

I ordered this item, and had to request an exchange because the stoppers were white (not black as advertised) and they literally were disintegrating in my hands. I sent the item back and received the replacement, but I was even more disappointed with the replacement. One of the flasks arrived broken, and the stoppers were the same white color and extremely poor quality. I requested a full refund this time, and sent the item back weeks ago. I still haven’t received my refund... Don’t waste your time with this product. It’s cheap and not worth your money.

I like the glass but they came very dirty. The stoppers are rubber and came dirty. After cleaning everything looks good. A few stoppers still have slit issues. I would recommend ordering stoppers separate. Thank you for the service tho.

This set is made of good quality glass for the hobby chemist. I'm glad I could find such a set with stoppers included for such a good price.

What a deal and they came with stoppers. I am only using them for decorative purposes, but I did test their ability to withstand heat over our gas stove. Boiled water with no cracks. Should work for actual chemistry experiments. Glass is thinner than some other flasks I've held and used, but it doesn't seem to be significantly more fragile.

Glassware arrived with imperfections in the glass. Not useful for any real use. Luckily I only ordered to look nice on my self but if you buy these with the intention of even using them without heating you will be disappointed. More than one had open groves in the neck with loose glass. Not obvious at a glance but would make a diffrence quickly if you actually wanted to use them for chemistry.

Very poor quality. Avoid! Cons: - 2/5 have level bottoms. The rest wobble on flat surfaces. - The stoppers have a very strong smell that is left behind on the flask even after scrubbing . - These are far from laboratory grade and will break very easily. - Graduations are off by as much as 10%.

Good quality if you're using it aesthetically, def not accurate for science. If you want real flasks go for Pyrex. Only one of my bottoms was a little uneven, but not a big deal.