Is that a fountain pen? Or a rollerball? Fountain Roller? - The Well-Appointed Desk
Amazon.com : ZenZoi Bamboo Wood Fountain and Rollerball Pen Set with Gift Case. Includes 1 Luxury Fountain Pen with Fine Nib, 1 Rollerball Pen and 1 Refillable Ink Converter (Fountain & Rollerball
J. Herbin Refillable Rollerball Review: A “Normal” Pen for Fountain Pen Ink - GeekDad