Uni NanoDia for Textbook Pencil Lead - 0.5mm - B


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Mitsubishi Uni

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The Uni NanoDia for Textbook has 60% more of lead concentration, therefore is 60% darker than conventional lead, making it suitable for writing on glossy textbooks.

The Uni NanoDia pencil lead incorporates nano-diamond into each lead to enhance the strength and quality of the lead, and smoothness of the writing. In conventional lead, graphite particles are in close contact. The friction of the particles reduceds the smoothness of the writing. By injecting nano-diamonds between graphite particles, the friction is reduced and the smoothness is increased.  

40 leads included.

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