The study and design of this product was asked by Rodal Ingeniería. They were creating the electronics and needed some help in the beacons and in the reel design. The concept is that when you need to stop on the road your security depends in how visible you are. So they thought in this portable system.

More at http://www.youtube.com/user/Rodalingenieria#p/u/7/7D5DHj662uI