Think of the U-Dig-It as the very little brother to the military entrenching tool. While the full e-tool can be used to dig, saw, chop and kill your enemy, the U-Dig-It is more specifically designed for light-duty camp chores like fire pits and cat holes.
For just under six ounces you get the stainless-steel tool and a nylon carrying case. Just flip it open and trench away. It's fairly sturdy as long as you don't try to use it for hacking out roots and such.
That's pretty much it.