Pinit BACKINGS for European Posters. 23 x 33". .1875 thick, C-flute Corrugated Cardboard. White both sides. Short-term Storage. SKU: KEUP (0)No Reviews yet Add to Shopping Cart Details European Poser Backings 23 x 33" .1875" thick, C-Flute Corrugated Backings. White both sides. Short-term Storage. Details Back DetailsEuropean Poser Backings 23 x 33" .1875" thick, C-Flute Corrugated Backings.White both sides. Short-term Storage. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review