Ambition Ballpoint Pen, Black Resin - #FC148130 – Faber-Castell USA
Amazon.com: THINK2MASTER [24 Pens - Blue Ink] Think2 Retractable Gel Pens. (24 Blue) Fine Point (0.5mm) Rollerball Pens with Comfort Grip. : Office Products
Think Ink Pens: Fidget for Focus by TimeFlyz Reminders, Inc. — Kickstarter
Amazon.com: THINK2MASTER [24 Pens - 3 Colors] Think2 Retractable Gel Pens. (18 Black, 3 Red, 3 Blue) Fine Point (0.5mm) Rollerball Pens with Comfort Grip. : Office Products