The real thing

You get a lot of those coloured-balls-in-a-bag questions in maths lessons. But you don't see it very often in real life. So I was pleased and surprised to see a real-life example in the boulangerie near school. I asked if I could take a couple of photos:

So you can win:

● An isothermal bag

● An inflatable cushion

● A set of beach rackets

● Nothing

There are a number of mathematical questions you could ask here...