WELL MADE - This cardboard is a hard board made of compressed kraft paper, which is recyclable and environmentally friendly, with no unpleasant odor. And it is waterproof, and the pigment does not easily pass through the cardboard. ABOUT SIZE - The chipboard is not too thick, only .040 caliper thick. 40 pt chipboard is as thick as 10 sheets of plain printer paper(1 mm thick).
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