Glass Erlenmeyer Flask Set, (250 ml, 150 ml & 50 ml) Graduated Borosilicate Glass Erlenmeyer Flasks with Rubber Stoppers & Accurate Scales for Lab, Experiment, Chemistry, Science Studies etc

Accurate .

Super cute. Great for costume or decoration. Glass is not thick like pyrex or anything. Rubber cork is a nice touch.

Used these for an experiment. They held up to high heat for over a week almost nonstop with no damage. Perfect! Plus they look cute and the stoppers work pretty well!

The glass is amazing, both thick and well made. Size is consistent, graduations are correct, and they could pass for genuine American borosilicate. Stoppers are iffy. I’ve had leaks from them, mostly when I open the flasks, and they seem to retain the liquid around the edges of the stopper. That said, they’re perfectly airtight. Great value for the set, and I appreciate the muted look of this brand. Nothing crazy, and they actually do mark the flasks, but it’s not overboard.

I am creating m own blends of essential oils. These little flasks are perfect for small batch blending.

Nice set of Ehrlenmeyers, with stoppers. They are the usual thickness of glass and ought to last a long time.

Not the toughest but very good flasks. I have had no problem storing my sodium cyanide in one and chloroform in another. Not sure what to do with the smallest yet? Two thumbs

Good flasks, packed too close together and not enough padding that resulted in the largest flask(the one I need most) almost completely shattering inside the packaging. The rest arrived in perfect condition though