Pilot Acroball Smooth Writing Ballpoint Pen - 0.5 mm - Soft Blue Body - Black Ink

Black ink pen. The Pilot Acroball contains a newly created oil-based ink that has 1/5 of the viscosity (or what you could describe as "stickiness") of conventional oil-based inks on the market. The unique blend of ink and lubricants allows the ball at the pen tip to rotate smoothly, creating an enjoyable, low friction and non-skip writing experience. Oil-based ink draws in satisfyingly dark lines and is also water resistant. The patent pending grip features tire-like patterns and a slightly curved shape to give a nonslip hold.