I wanted to comment a few things about triangles since I received them in case anyone has the same questions. The triangles come in a red carrying case, which is handy as they can be easily and conspicuously stowed in the car. Ours easily fits under the row of our SUV. I would like the latch on the box to be a little stronger, but only because the triangles are quite heavy, which is a good thing. The triangles are already pre-assembled and only have to be unfolded to set them up, quickly folded up and folded up for use. The red sides of the triangles are actually reflective plastic, like a reflector on a bicycle, so they're highly visible at night when a headlight shines on them, for example.
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