Rubberized grip barrel features an antimicrobial technology which prevents the growth of broad range bacteria. Lubriglide® ink system offers smooth writing and bold vivid lines. Retractable pen means no more caps to lose. $1.20 from the sale of each dozen pens will be donated to the City of Hope™ for breast cancer research treatment and education. Point Size: 1 mm; Point Type: Medium; Ink Color(s): Black; Pen Type: Ballpoint.