The Pilot Parallel pen set is a major breakthrough in calligraphy pen design. The "Parallel" nib consists of two parallel plates, allowing the writer to create much sharper lines than with other calligraphy pens. It can also create gradated colors by transferring ink from one pen nib to another, allowing two different ink colors to then be used from one pen nib. The set of 4 pens includes 1 each of the 1.5 mm, 2.4 mm, 3.8 mm and 6.0 mm nib sizes. Each pen box contains a Parallel Pen, 2 ink cartridges, tools to clean and flush the nib, instructions, and care guide. Made in Japan. The Pilot Parallel calligraphy pen set is the best beginner calligraphy set.  It is affordable, efficient, and writes beautifully.  It is used for traditional calligraphy and modern calligraphy.  The Pilot Parallel has a huge following on social media like Pinterest and Instagram.  The Pilot Parallel is a favorite among calligraphers around the world and across continents!