Vortex Water Tornado Swirl Maker Novelty Science Toy Creative Connector DIY Experiment Puzzle Leisure Desktop Toy Holiday Gift

1 PC Vortex Water Tornado Swirl Maker Science Toy Creative Connector Novelty Experiment Puzzle Gift for ChildrenProduct size: As pictureMaterial: High quality plastic with long life.Suitable for most beverage bottles(non-mineral water bottles)This is a scientific experiment toy that is both interesting and educational.You can make a tornado in the bottle and observe yourswirl in the bottle to help stimulate children's interest in physics,dynamics, and potential energy.The vortex connector is easy to use, use the connector to connect 2 bottles,shake the bottle horizontally 4-5 times, and then you will see the vortex rotate in the bottle.You can also add pigment or washing powder to the waterin the past to add some color and foam to your swirls, which is more fun! !!Note:1. There might be slightly difference in color, because of the computer monitor settings.2. With the difference in the measurement method, please allow 1-3cm in size deviation (1cm=0.39 inch).Thank you for understanding!!