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.