| 摘要 |
A road warning device includes a board having a lower housing, a casing rotatably secured to the housing with a shaft and rotatable into and out of a chamber of the housing. A plate is selectively and detachably attached to the casing and moveable in concert with the casing, and rotatable toward a folding position to engage with the board, and rotatable away from the board and toward a working position. The plate includes one or more reflective members and one or more light members for lighting purposes. The casing may include one or more weights to increase the weight of the casing.
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