Mix 'n' match with the Electrolux AEG Custom-Flex fridge (pictures)

BERLIN -- This year has seen Electrolux expand its Custom-Flex refrigerator feature, including adding it into a new series of fridges in Europe.

Just what, exactly, does Custom-Flex do? I'm ever so glad you asked.

On the outside: a simple, stainless steel fridge.

On the inside, you'll find the Custom-Flex shelves in the door. Each bin hangs in place on a grooved rail -- you can pop them in and out,  slide them from side to side, and re-order them however you please.

Custom-Flex comes in handy when you're trying to make room for tall items like wine bottles.

Bins come in a variety of sizes -- if you want more of a particular size, you can purchase them separately.

These Electrolux models are branded as AEG fridges -- that's a German manufacturer acquired by Electrolux some years ago. That also means that they aren't available outside Europe.

But fear not -- Electrolux owns a lot of brand names in a lot of markets. That includes Frigidaire, and sure enough, you'll find Frigidaire Custom-Flex fridges on sale in the US.

For the rest of the news from IFA 2015, check out CNET's complete coverage.