I needed an under-desk cable manager and didn't care for the others I found. I hope that this model helps others!

There are two sizes of this hook:

1. The standard outer dimensions of this hook are 1.5" x 1.5" x .53".
2. The large version outer dimensions of this hook are 2.25" x 1.75" x .53"

There are three version of this hook for each size:

1. The original which has mounting holes for both vertical and horizontal orientations.
2. The vertical hook which only has the vertical mounting hole.
3. The horizontal hook which only has the horizontal mounting hole.

The hole size is 11/64"D, the countersink is 5/16"D. This should be sufficiently large for any size screw. I have successfully mounted the clip with #2, #6, and 8 wood screws.

The gap for adding cables to the hook is 1/3" tall, and should be large enough for any size cable. The material should flex enough if you need to add anything larger.

I may consider adding additional configurations if I get enough requests!