I had this when I got my first Supra. Dealer I got several cars from before refused a test drive so I went a few miles north, tested, and then purchased.
Vacuum formed CF perhaps. Looks like solid carbon fiber with no fiberglass fillers... nicer than most of the CF stuff out there for the car. but pricey.
Once tested, let us know. It could be very useful as long as it requires a key nearby to work. Otherwise, if it bypasses the lock, then I would be afraid of it.