| 摘要 |
A flexible foldable triangular warning device is provided. The warning device is made from at least one panel and can be moved between a compact or storage position and an expanded position in which the warning device can be made to be free standing. The device can comprise a single panel, in which case, the device includes a base which will enable the panel to be free standing or to be mounted to the window of a vehicle. The device can also comprise two, three, four, or more panels, in which case, the device will set up to form a triangular or rectangular pyramid.
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