I've used a few probes before and I have to say the quickness with which you can go from packed to fully extended is phenomenal. It certainly has something to do with the little nubs on the ends of the pole sections. Might be longer than what most people think they'll need, but I prefer to be on the safe side of that estimation.
Anyways, comes with a little case, it's light, durable, and goes together in literally under 5 seconds. Probably more like 2.