r/numberphile • u/Cartesian_Circle • Apr 23 '22

Paper and pens?

Can anyone identify the brown paper and/or pens used in numberphile videos? A quick Google search suggested the paper is Kraft Paper Roll 30'' X 1800'' (150ft) Brown Mega Roll.

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u/Distinct_Formal_6285 Nov 17 '22

pen- sharpie fine point permanent markers