mciskin Tornado in A Bottle,Tornado Tube Bottle Connector Vortex Connector Cyclone Tube for Scientific Experiment and Test(5 PACK),Fit for Size 1.3-1.9 inch

My son is obsessed with tornados and loves making and watching these. After reading some reviews I was worried the connectors might not work on UK bottles, but I can confirm most UK bottles are compatable without any leaking - you just need to remove the plastic trim around the bottle top (as pictured). We used Pepsi max bottles here, but have also used Coke and Water bottles too without an issue.

Bought for my tornado obsessed grandson. I was doubtful it would work reading some of the reviews but it does. I used small sized Coca-Cola bottles just screw on shake and you have a tornado.

Doesn't fit on a Dr Pepper bottle. But fits perfectly on a coke cola bottle! Swirl the bottle and you'll get a tornado.

This item should not be sold in the UK.Given that the design clearly does not fit ANY bottles, I do not believe the '5 stars' are genuine at all.It very clearly does not fit British bottles and I believe the company that makes and sells these is well aware of this as I'm certain many other British people must have complained about this. As such, I am sending this back. Useless product and not as advertised.

Kids love these once you get a compatible bottle.Small Biggs juices , rubicon 2 l or vimto work so far for us !

I tried the tape like the videos and it leaked everywhere. These are amazing and do the job perfectly. My son loved his whirlwind in a bottle.

My boy who is autistic has a thing for tornadoes, and this is by far his favourite now im from the UK and these DO work with normal plastic bottles, all you need to do is remove the plastic ring where the lid detaches when first opening, hope this helps

Not possible to use as it would not screw onto any bottle we could find. Very disappointed