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Amazon.com : Foam Core Backing Board 3/16" White 1 Side Self Adhesive 8x10-5 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects :
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Amazon.com: Mat Board Center, Acid Free Foam Boards 11 x 14 Inch, Black Foam Core, 10 Sheets : Office Products
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