A sheet of A4 paper is about 0.05mm thick. The paper is torn in half, and each half is again torn in half, and this process is repeated for a total of
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Amazon.com : Hammermill A4 Paper, 20 lb Copy Paper (210mm x 297mm) - 1 Ream (500 Sheets) - 92 Bright, Made in the USA, 105500R, White : Office Products
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