ARLINGTON CECOMINOD015809 BE3 Wall Plate, White Allows you to correct setbacks and insulate devices with an easy install design Eliminates the need to align device screws with extender holes, and then trying to find the holes in the box Adjusts up to a 1-1/2" box extension for a flush mount and neat finish Continuous, smooth, non-metallic side walls enclose devices completely creating an insulating barrier between the device and the metal box Screws not included