The design relies on sturdy but lightweight tent poles to provide support for your flashes and/or flashes with a soft box. The creator of the design, Peter Karlsson, put together two videos demonstrating first how the stand functions and then how it is constructed:
The end product is smaller, lighter, and less expensive than a traditional light stand. It does have shortcomings, though mostly due to the lightness. You can put a flash on it, for example, but you couldn't safely put a strobe on it. It's also, as he notes in the video, a poor match for an outside shoot on a windy day. For portability and ease of packing, though, it's a great stand for flash-based photography.
Homegrown Ultralight Lightstands [Svarteld Form & Foto via Hack a Day]
