"- 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"