25 Pieces Tornadoes in A Bottle, Plastic Tornado Bottle Connector Cyclone Tube Vortex Connector for Scientific Experiment, 5 Colors

Cute goody bag filler when it fit. Found that it mainly fit larger size bottles. Add food coloring for fun. Kids loved them.

These seal great and the kids love to watch the vortex. I bought them for a couple of autistic kids and they cannot get enough of them. They seal really well - no issues.

The kiddos at the BGC loved these! Great STEM activity! Add glitter or food coloring to change it up.

I bought this tornado bottle connector for my son’s science project, and it was a huge hit! It’s so much fun for kids to watch the tornado form and swirl from one bottle to the other. It’s a simple yet effective way to help children understand the science behind tornadoes in a hands-on way. We used it for his science fair display, and it drew a lot of attention. After the event, he even handed out a few to his friends so they could try it at home too. Highly recommended for any young science enthusiast or classroom project!.value for money

Works as described. I’m grateful someone else mentioned finding bottles that had enough thread (around the opening) so that it didn’t leak. I had no leakage problems because of this. Always nice when you don’t have to try and “fix” what you buy

I purchased these tornado tubes for a VBS project at church, which is why I needed a large package of them. The quality is not the best I’ve seen. I had to use plumbers tape around the bottle threads to prevent leaks, but that worked just fine.

I ordered these to use for Vacation Bible School. There were a few of them that would not tighten down and leaked when we flipped the bottle over. We tried hot glue around the tops to stop the leaking. This worked for some, but not all. Overall, we loved the project and would order them again.

arrived on time and worked as advertised functional on 1 and 2 liter usa soda bottles

Good product but the instructions arent great. Swirl the bottles round and round and then it will create a tornado effect.

A hit with the kids, included it in our Xmas loot bags. Make sure you include a link to show parents what to do. Advise to screw the bottles on tightly or they may leak.

Hard plastic limits use to popular soda bottles.