Excellante Flashing Light for Caution Signs, PLFCS330, PLFCS332 Made out of plastic and is very light weight Caution sign light is perfect for warning any pedestrian of impending wet floors and is an add-on Orange light flashes at intervals every few seconds to provide clear visibility to any pedestrian Flashing light is intended to be used with the 19-1/2-inch and 31-inch pop-up safety cones Flash light is a very compact device that fits onto the caution sign with no problem and can be stored in any drawer