Nikko Nib - 659 Maru Pen is a small hard nib perfect for creating highly detailed drawings with their ability to hold a very fine and consistent point. These mapping nib with little flexibility and a super-fine point ideal for creating highly detailed drawings. Produces strong, crisp fine lines. These are capable of excellent line variation for pointed pen scripts such as Copperplate and Spencerian.The 659R nibs are unique because they feature a little reservoir to hold extra ink, allowing longer writing on one tank. This nib is ideal for intermediate or advanced level calligraphers and is not recommended for beginners.