InFocus Corporation Angled Ceiling Installation Plate for Projector Mount Adjusts from -5 to +95 to level a projector from an angled ceiling Three slotted mounting holes allow horizontal and vertical adjustment for a precise installation Compatible with 1.5" NPT threaded extension column Weight capacity: 500 lbs. Black finish Adjusts from -5 to +95 to level a projector from an angled ceiling Three slotted mounting holes allow horizontal and vertical adjustment for a precise installation Compatible with 1.5&#034; NPT threaded extension column Weight capacity: 500 lbs. Black finish