A few days later reached me the package (there were other articles here). 20 cm x 20 cm x 60 cm degree of cardboard. My question was the same: how does in there a sign of 50 cm * 70 cm? The answer then was found after opening. The "Shield" turned out to be rolled Posters! In the product description is always the term used "sign" and the pictures suggest a close "real" sign. In Duden is the following word meaning is "plate - panel, plate with a sign, a label or equivalent". So I would have expected that. In fact, there's here but a PVC-coated poster that indeed may be weather resistant, a sign, it is not!
Resourceful will now say, but as in the description and the weight in grams per square meter and there is only length times width specified, so the depth is missing. Why so convoluted in the product characteristics? Honest, it would, in my view, if we were to use this as a description of the word poster. Now I'm going to get me a stable surface to make the actually desired sign of a poster.
Conclusion: idea and looks really succeeded in the "problematic" Product description is misleading. So unfortunately only 3 star from me.