PATENT-PENDING PRECISION GEAR PROVIDES ACCURATE PROJECTOR IMAGE ALIGNMENT; 2 ADJUSTMENT KNOBS CONTROL PROJECTOR IMAGE ALIGNMENT; HORIZONTAL WRENCH ACCESS SLOTS MAKE FLUSH-MOUNTING INSTALLATIONS FAST & EASY; PRE-ASSEMBLED DESIGN REDUCES INSTALLATION TIME; QUICK-RELEASE MECHANISM TO EASILY SERVICE PROJECTOR; CABLE MANAGEMENT ALLOWS CABLES TO BE ROUTED THROUGH PROJECTOR MOUNT OUT OF SIGHT; SECURITY HARDWARE PROVIDED FOR THEFT DETERRENCE; HOLDS UP TO 50 LBS; TILT: ±20°, ROLL: ±10°, SWIVEL: 360° WHEN MOUNTED ON EXTENSION COLUMN, ±15° WHEN FLUSH MOUNTED ON CEILING; INCLUDES SPIDER® UNIVERSAL ADAPTER PLATE; BLACK