As a cable duct for wall unsuitable!

I ordered this cable channel for the floor, but I can only say that this cable channel is not suitable for the wall.
The bracket can be seen inevitably under the cable channel. You can also leave the bracket disappear with a little force, by tightening the holder is not fixed but can be slightly loose and since then pushes down cable channel of whether down.
However, then the entire construction would be slightly loose on the wall.
In short: Too much work for little effort, can therefore be better to resort to a different cable duct!