Yopay 10 Pack Media Storage Bottles with GL45 Blue Screw Cap, 250ml Reusable Glass Bottle, Round Scientific Glass Container for Labs, Classrooms or Home Use

This is my initial review on the day I received my box of 10 bottles on 08-08-2024.As I delve into amateur chemistry I’m finding the need to store more chemicals as I synthesize them.The size is great for chemicals that you won’t be needing or creating in bulk. The jars are fairly large and very sturdy.So far I’ve only used one with a synthesized chemical and I tested for leakage with water on another in the pack.The lids are a nearly perfect (very slightly smaller) 2 inch round “about 50mm” which works out great if you want to use a 2 inch label for the lid.So far, so good. You can’t beat the price. (About $2.20 U.S. per bottle in a 10 pack after tax on this date). I will be testing the durability, with my biggest concern being the lids ability to withstand strong acids and oxidizers, and I will update my review periodically.

The glass is thick and the plastic is super resistant to acids like fuming nitric and concentrated sulfuric acid. As well as many other chemicals. I have never got this good on deal on storage bottles. I would recommend 100% even if it's not for chemistry they're very well made. I couldnt find out what type of plastic the lid is but it's chemical resistant for sure

Very nice lab bottles. They seal well, are quite sturdy with thick glass, and nice graduations which wont scratch off. Well worth the money.

I have not used these yet, but bought them to dissolve medicine in water to control my dose because I can't get medicine in the prescribed dosage. They are very high quality, but the size is larger than I realized (my fault, because the size is clearly stated).Updated 3/16/25. I am finally using these bottles. They leak!! The ad talks about the special seals to prevent leaks, but they leak! Liquid flies everywhere after tightening the top and shaking. When you open, liquid that was caught under the cap leaks down the side of the bottle. Such a disappointment for what appears to be a high quality product.

These are being used by school students in a water quality testing lab. Sturdy, but not too heavy. Easy for smaller hands to handle. Great value.

just what I was looking for. There is a spot to write on - hard for me to write on a curved surface - but it's a glass bottle

These are perfect bottles for my pool testing chemicals.

I can handled these bottles and not worry about breaking them