I can't get pictures, but can tell you how it works. Each piece, top and bottom has a worm gear built into the left (as you face it) side rail. One end of the cable is attached to that worm gear and the other end goes around the tree and then into the channel lock on the right side rail. As you climb and need to adjust the level you simply take a few turns on the hand crank of each worm gear and you're all set. It's very stable, sets up and climbs much more quietly than my API and packs pretty easy too. I recommend it.
Good luck.
Craig