Waterman Pens: Hemisphere... A pure contemporary design, Hemisphere spans the universe of writing. Its slender tapered form is elegantly accessible, a free adaptable personality that can be simultaneously striking, subtle, colorful and chic. Embrace the world of words and step into your own private Hemisphere, by Waterman. Available in three writing styles: Fountain Pen, Rollerball Pen, Ballpoint Pen. Fountain Pen can use either cartridge or converter (included).