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Foam Core Backing Board 3/8" White 22x28- 50 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
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Amazon.com : Foam Core Backing Board 3/16" White 1 Side Self Adhesive 22x28-50 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects :
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Pacon Creative Products Pacon Corporation Ucreate Poster Board, White, 22" X 28", 10 Sheets Per Pack, 3 Packs | Wayfair
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