Mount-it! Full Motion Projector Mount With Universal Lcd/dlp Mounting For Epson, Optoma, Benq, Viewsonic Projectors | 44 Lbs. Load Capacity | Black : Target
Install and Mount Ceiling Projector -Optoma HD65 - YouTube
Amazon.com: Optoma OCM818W-RU Low Profile Ceiling Mount Projector Accessory, White : Electronics