The wire hider non-metallic surface mount 1/2" x 48" raceway was designed with the installation professional in mind. Wire Hider was designed to eliminate the problem of hard to install locations where the cable has a tendency to fall out, especially on ceiling runs. This raceway duct speeds up installation by enabling you to simply push the cables into its flexible center slit and it allows you to exit anywhere along the run without the concern of the cable falling out. No raceway covers are required, but are available as an aesthetically pleasing option.