Tornado Maker, Weather Toys, Ultra-Light Aluminum Connecting Tube, Including 2 Empty Bottles, Watertight Tornado Toy, Suitable for Kids' Science Experiments (Blue)

It was a gift for my 4 year old nephew and he loved it!Love that it is small and easy to use for him.

Easy to use and straightforward. The bottles are smaller than I was expecting but it still works (or rather, preschoolers can still get it to work before it empties). Small enough that I can include filling it, carrying a full bottle to the table, and emptying at the end as steps of the activity

Easy to assemble. No leakage. Sturdy bottles

The connector is sturdy and works as intended. It attaches securely and allows water to flow between bottles without leaking.The kit includes two small plastic bottles, but they are much smaller than needed for good results. Because of their size, the tornado effect is very short, lasting only about one to two seconds. To get a proper, longer-lasting vortex, it would be better to replace them with two standard 2-liter bottles.The instruction booklet and the tornado facts booklet are written in poor English, which makes them hard to follow. The diagrams help a little, but the writing could have been clearer and more accurate.Overall, the connector itself is useful, but better bottles and clearer instructions would make the kit much more effective.

worked great for my sons science fair project

My step son loves tornadoes, we put this together, he had a hard time initially making thr twister, but he did get it

I love learning toys and I often buy them for my niece. This is one of the nicer ones. It includes everything you need in the kit including the little bottles. The connection piece is very easy to screw on and doesn't leak.

Great experiment, works great and actually gives you a feel how a real tornado would form, amazing how this works.