Pinit BACKINGS for Insert Posters 14-1/8 x 36" .1875" thick Foam Board. Acid-free & Buffered. All white. Indefinite Storage. SKU: KIPFC (0)No Reviews yet Add to Shopping Cart Details MUSEUM GRADE Insert Poster Backings 14-1/8 x 36" .1875" (3/8") thick Foam Board. Acid-free & Buffered Board. All white. Indefinite storage. Details Back DetailsMUSEUM GRADE Insert Poster Backings 14-1/8 x 36" .1875" (3/8") thick Foam Board. Acid-free & Buffered Board.All white. Indefinite storage. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review