View 2 of Excelsis Design, Pack of 15, Foam Boards (Acid-Free), 11x14 Inches (Many Sizes Available), 1/8 Inch Thick Mat, Black with Black Core (Foam Core Backing Boards, Double-Sided Sheets) 11x14 Black

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View 1 of Excelsis Design, Pack of 15, Foam Boards (Acid-Free), 11x14 Inches (Many Sizes Available), 1/8 Inch Thick Mat, Black with Black Core (Foam Core Backing Boards, Double-Sided Sheets) 11x14 BlackView 2 of Excelsis Design, Pack of 15, Foam Boards (Acid-Free), 11x14 Inches (Many Sizes Available), 1/8 Inch Thick Mat, Black with Black Core (Foam Core Backing Boards, Double-Sided Sheets) 11x14 Black