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Amazon.com : Pentel® Super Hi-Polymer® Leads, 0.5 mm, 2B, 12 Leads Per Tube, Pack of 3 Tubes : Mechanical Pencil Refills : Office Products
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Amazon.com : Pentel® Super Hi-Polymer® Leads, 0.7 mm, Medium, HB, 30 Leads Per Tube, Pack of 3 Tubes : Mechanical Pencils : Office Products
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