If you were going to design a pool float, you'd probably opt for something that looks a bit like a mattress in a bright summery colour.
An American company, however, went for a concept that looks a lot like something you'd find in the feminine hygiene section at your local supermarket.
It was briefly available for sale on Amazon for $105 with suitably hilarious reviews. However, the page has since been taken down.
"Because who wouldn't want to hang at the pool on a giant menstrual pad? You wind up with the entire pool to yourself, which is bonus," said one.
It's currently going viral on Twitter thanks to this very succinct tweet from a woman called Jillian David ...