Specifications: Tilt: ±20°, Roll: ±10°, Swivel: 360° when mounted on extension column ±15° when flush mounted on ceilingsPre-installed security screws provide optional tilt and roll lock to prevent tampering with adjustment knobsSpider® Universal Adapter Plate extends up to 17.63' (448 mm) to fit most projector modelsQuick-release mechanism to easily service projectorU shaped pitch bracket allows for hassle free cable routing Cable management allows cables to be routed through projector mount out of sight Horizontal wrench access slots make flush mounting installations fast and easyPre-assembled design reduces installation timeTwo adjustment knobs control projector image alignmentPatent-pending precision gears provides exact projector image alignment