25x150mm Glass Test Tube Set with Cork Stoppers and Plastic Rack, 6 Piece Set, Karter Scientific 150A5

I picked this up for my homeschooled student and 9th grade biology labs. The set was packed well enough to keep it safe during shipping...although the packaging is nothing special and does not work for storage purposes (but this isn't a problem, anyway).The stand is plastic but stabile. The test tubes are okay from the thickness and definitely fulfil their purpose. The included stoppers work well and seal the tubes nicely.It's exactly what we needed and works well for our purposes.

Does exactly what I need it to do

I've set it up but haven't used it yet. Stoppers fit well. Stand is easy to set up and looks like it will hold.up well.

These seem by no means to be the lowest quality test tubes one can buy, and the plastic is of reasonable quality, but one of my test tubes broke unexpectedly during the first use. The tube was under some mechanical strain, but nothing I thought seemed too much for the thickness of the glass. Considering the price I expected a little more durability. If you are using them under mild conditions, they should be perfectly fine.

I created a spilt test tube with resin. Came out awesome.

These were a great purchase and my kiddo used them for a science experiment at home. They were sturdy and there were enough of them to do a good experiment with. Thanks!

I purchased these to mix inks and make my own colors, but they are useful for so many things that I really like them.

La calidad del producto es bastante buena. La base no me gustó del todo pero si es práctica.