The Draper 121207 Ceiling Opening Trim Kit is designed for ceiling-recessed installation of Premier or Targa electric projection screens, or Luma 2 manual screens. The kit attaches to the screen endcaps and forms a finished slot in the ceiling allowing for passage of the projection screen surface. The kit is painted white to match most ceilings. Case can be installed less than 2" above a finished ceiling. This accessory saves time and results in a faster, better looking installation. Slot includes finished flange to accept acoustical ceiling tile or grid. Slot measures only 2-1/8" in depth. The slot is always positioned properly and has a professional finished look in the ceiling. The Ceiling Trim Kit insures that the slot is always installed square, at the absolute minimum width and in the correct position relative to the Targa, Premier or Luma 2 case. Saves money because you do not have to provide the labor and material to frame a finished slot.