Dynamic product package

[BOBBO4518]

I know this module exists - to important not to - but where?

We are selling clothes for training. We want to sell a complete set - Jacket, trousers, leotards and tights. But I need to give the customer a possibility to choose different size on each garment.

SO - I want to make a packadge of four different products, in the productgallery, and give the customer a choice of sixe, mabe even color...

Where do I find a module that allows this?