Features - Independent roll, pitch and yaw for quick and precise projector registration - Quick connect/disconnect for convenient lamp and filter access on most projectors - Maintains registration when disconnected and doesn't affect preset adjustments - All-Points Security exclusive steel-into-steel locking hardware at all key connection points to protect against theft - Multiple installation options: flush mount to ceiling, mount with 0.25" threaded rods, or mount with 1.5" NPT threaded extension column - Cable management without additional accessories