OBTANIM Tornado in A Bottle, 8 Pcs Tornado Tube Bottle Connector Cyclone Tube for Scientific Experiment (Random Color);

Specifications:

- Material: Plastic
- Size: 1.3 x 1.9 inch
- Color: Purple, blue, red, green,yellow
- Weight:Each 20g

Packaging includes

- 8 x Tornado connectors

- Good educational and fun experiment and activity for school classes, homeschoolers, scouts and any other group, stimulating kids interest to physics and study.
- Create a tornado from plastic bottles, water and a colorful plastic connecting tube.
- Great educational toy for your kids, Perfect Christmas Gift / Birthday Gift.
- You have to take the food-security ring off of your bottles to get these to catch the threads.

If you have any questions, please contact us and we will reply at the first time.