20Pack Foam Boards, 11″x14″ Foam Core Backing Board White, 1/8″ Thickness Mat Boards Poster Boards Polystyrene Poster Board Signboard Perfect for Presentations, School, Office & Art Projects
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【20 Pack Foam Boards】Size: 11”x14”, Thick: 3MM / 1/8 Inch； White foam board made of polystyrene foam and covered with mat white paper, Durable and Acid-Free
【Smooth Surface Mat Boards】Foam core has a smooth surface on each side board, as mat white paper coating over the foam, perfect for painting, mounting and DIY