Great part and service
The duct is sturdy metal with a metal cover that is easy on and off. The 3 inches of space holds a lot of cable and the fingers are spaced so that wires from a full switch fit neatly. My goal was to clean up the wires under my switches, and this does a great job. And the snap-on cover makes it convenient to add or remove the cables. I was also impressed with the packaging and how quickly they arrived.