This coffee adapter for the Outin portable espresso maker rolls up for easier storage. Thread a 24" long section of TPU filament through the holes in the side panels, and tie off through the clamp at the end. The TPU string should be short enough that pulling on the clamp will tighten and pull all the side panels together, rolling it into a cylinder. This design rests on top of a small coffee cup, but you can add a wider flange to the base depending on the size of your vessel. Enjoy!