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| PM30BK - Ea Black Fisher Pressurized Medium Ballpoint Plotter Pen |
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This pen has many advantages over a standard plotter pen. They will never dry out and can write at any angle, even upside down, because it has been pressurized. It is extremely long lasting because of a very high viscosity plotter pen ink formula and a plotter pen point that features a durable tungsten carbide ball and stainless steel socket that have been machined to ultra high tolerances.
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