Steve Spangler's Large Plastic Test Tubes & Rack, 6 Bottles & 1 Rack

I needed test tubes for water samples for a college level class. These were perfect, so much so that the instructor kept my project for his office. Very easy to use, sturdy, the stand holds everything perfectly and it is just a very well made product. I recommend.

I used this in my classroom (science teacher) to hold tiny, fuzzy spheres that different class periods could earn in classroom competitions. It was nice to have a rack to display the tubes so the students could see their progress.I did not use them for experiments or other similar activities.

…and a bottle connector. This allows me to fill one side with perioxyl and my brush sits contained in this bath, inside my shower. My gum health has improved considerably.

I used this for a science-themed party decoration, so can’t speak to its function for other purposes. The plastic tubes are clear and thick. They held liquids and were transparent. The rim of one test tube was chipped when I took it out of the package, but the cap still screwed on. The caps are soda bottle caps—pretty cheap, and not what I expected, but they screw on just fine. The stand is durable enough.

Very happy with purchase. Bought 3 packs for multiple stem projects. Easy to set up and store

The stand is just the right size and easy to assemble. The tubes are sturdy plastic and the lids screw on like a 2L soda bottle. Which is great when my son mixes things and shakes the tube to watch it settle again over time

Shatter proof. My son dropped one from his hand filled with whatever concoction he needed for his homeschool, and it was durable enough not to break. He has done several experiments, and they have held up so far.

I am using this set of test tubes for my starter live plants. It fits on my window seal.