D-Line 39in Half Round Cord Hider Medium

I purchased two 3' raceways to conceal speaker wire for new Klipsch presence speakers I purchased for my home entertainment system. In the photo you can see the horizontal raceways extending from the two wall-mounted speakers to behind the upper TV. I purchased white raceways and followed the instructions which said to scum them with sandpaper before painting. I did that and had no issues with the paint adhering to the raceway. I used a short roller to try to mimic the texture of the paint on the walls. I cut the raceways to the desired lengths using a hacksaw. That was reasonably easy. I wasn't too worried about how "finished" the ends would look since I knew they would be concealed. The main issue I ran into was realizing that the raceways were not completely straight. The way I attempted to overcome that was by placing a long, substantial level along where the raceways would be installed, and then starting from one end, push the raceway flush with the level to straighten it out as it was being attached to the wall. That was mostly successful, though if I'm being really picky I can see places where the raceway could be more straight. Also of note is that the raceway mounts to the wall with adhesive which is very strong. So you pretty much have one shot to attach the raceway where you want it; it will not easily come off & re-attach if you don't get the placement right. Overall I'm pretty satisfied with how my project turned out, but would have been more satisfied if the raceways were perfectly straight (or reasonably close).