X-Pen Aristo Chrome Flat Sided Ballpoint Pen. The Aristo is a beautiful pen design and is available in 2 different finishes: Chrome plate and Chrome Plate with Gold plated fittings. Available as a Ballpen, Rollerball and Fountain Pen. The Aristo has a flat surface on the top for easy grip. Ball pen has a twist mechanism and each pen is individually boxed. Suitable for printing and engraving. Please contact us for further information.