Material: The ceiling mount with tray for projector is made of aluminum alloy, ensuring wear resistance, durability, and long term use Adjustable height: Projector ceiling mount with tray adopts height adjustable design, which is easy to adjust to the appropriate position to meet your different needs Stable: Universal projector shelf has a solid structure, strong load bearing capacity and high stability Easy installation: Projector bracket is easy to install, no complicated steps are required, can be installed on the wall or ceiling, saving time and effort Wide application: Ceiling mount with tray for projector/camera is suitable for living room, conference room, home theater, bedroom, etc Specification: Material: Aluminum alloy Size Chart:Adjustable 40 cm-80 cm/15.75 inch-31.50 inch, tray 31 cmx22 cm/12.20 inchx8.66 inch Package Includes: 1x Projector Ceiling Mount with Tray Note: Please allow slightly errors due to manual measurement and different monitors.