Genius finalists show off swim hat invention

This week it's the finals of Newsround's inventions competition, You Too Can Be An Absolute Genius.

All week on Newsround the finalists are showcasing their inventions to a panel of clever judges and on Friday you'll find out who's won.

The first group of finalists have already demonstrated their invention, the magno-stick.

And our second group pitched their idea of the super useful bunk bed box.

Now it's the turn of team three, who have come up with a great idea to help with tricky swim hats.

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