That's the two killer 3000 model. It's pocket screws holding together a box. The plywood across the back of each box gives it stiffness.
I would strongly suggest throwing some 2x4's under it, and a few inches back. Just to get that bottom edge above toe height. Anything you're likely to walk right up to should have toe clearance. Especially if you might do that in the dark, like a bed.

