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

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.

Made of plastic, the surface of connectors has stripes, thus much easier for you to rotate, can be applied repeatedly, common size for most bottles, better than other connectors
Use a connector to connect a bottle with about 3/4 of water and an empty bottle, shake the bottle horizontally 4-5 times, then you will see the vortex in the bottle rotate
Great educational toy for your kids, perfect gift for Christmas, Birthday, and the other holiday
It is a great educational and fun experiment activity tool for school classes, homeschoolers and scouts. It can help increase the intelligence of the kids, stimulating kids interest to physics and study
REMOVE PLASTIC RING FROM BOTTLE BEFORE USING.You can put coloring or washing powder is added to the water in the bottle, so that the little tornado you create has different colors and bubbles, which is more interesting