I'd love to be able to take full part in this, but I can not post pictures with this pos ipad. All I can do is partake of the guessing side of this game.
They could be used as a set of knucks, but I wouldn't use it as such unless I was really in a bind. The oblong holes toward the bottom are finger holes.
It looks like one of those things you use to take up the slack in the ropes at the corners of tents/canopies that go to the tie down stakes. I've had a couple pain pills so hope I'm making sense. You tie one end of your rope to the top of your canopy corner pole. You run the other end of the rope through one of the holes, then through through the stake, and have it tied to the other hole in your device. Damn, I need a sketch pad!