Patelai4-Pack 250ml Round Borosilicate Glass Media Storage Bottles with Blue Screw Cap for Lab Liquid Storage

Very bad quality and used Smells perfume oil and looks like it’s used a lot

I received 3 pieces instead of 4

These bottles work great for diluting my medication. I use the dishwasher to sanitize them. They are also sturdy and hold up very well during use.They should write fragile on the package. Two bottles arrived broken. A replacement was sent out promptly.

These are almost too sturdy. The glass is very thick. The bottom is convex on the inside so it's hard to get a stir bar spinning. You have to play around with it to get it going. The lids do not leak if they are tightened down.

One arrived broken but they are good quality so I’ll give 5 stars.

These are junk. There are no gaskets in the lids. So no matter how tight you tighten them they will leak and liquids will slowly evaporate.

It's difficult to rate these because of the way I use them. I use them to sterilize under high pressure and under those conditions I'm not sure that I can expect that they will never explode. I did lose a couple to explosions when I shook them with the cap on. But that could be more user error than anything. Otherwise they are good. They aren't easy to clean but that's just because of the design of the bottle and it comes with the territory.