A MacPherson strut tube having an upper spring seat, a spring, a strut tube, and a ring bearing disposed for engaging the spring seat, the spring and the strut tube. The digital multifunction device enables a personal computer connected to and capable of communicating with the digital multifunction device via a USB interface to recognize this virtual drive area as an external storage device. The film is provided by a chemical vapor deposition method in which a preliminary film is deposited from organosilane andor organosiloxane precursors and pore-forming agents, which can be independent of, or bonded to, the precursors.