Pinit Decorative Matboard 18 x 24"- NO Window Choose from 18 matboard colors. SKU: kmb1824 (0)No Reviews yet Add to Shopping Cart Details Decorative Matboard 18 x 24"- NO WINDOWMatboard is 55-60 points thick, pH neutral and buffered. Cream core. White back.Click on color chart to choose... Details Back DetailsDecorative Matboard 18 x 24"- NO WINDOWMatboard is 55-60 points thick, pH neutral and buffered. Cream core. White back.Click on color chart to choose from 18 matboard colors. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review