A supplemental restraint system comprises a channel adapted to receive a seat belt, a first flange adapted to retain the seat belt formed on a first edge of the channel, a second flange adapted to retain the seat belt formed on a second edge of the channel opposite the first edge, and a pad connected to a bottom surface of the channel. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The system may further comprise a frame configured to securely hold the insert in tension without requiring additional fasteners. GPS position data and historical GPS position data can be exchanged between cell phones of buddies and instant buddies such as tow truck drivers via a buddy watch server. Detected differences are displayed as transparent windows on top of browser under test. Each of the corners of the polygonal device is formed, throughout the thickness of the wiring layer, by one of the second electrodes.