This handmade fountain pen was turned from a piece of acrylic which was also hand made. This model is called callisto after the cratered ice moon of jupiter. It features a black acrylic section which holds a bock #6 medium nib and a premium ink converter from beaufort ink. Colour - purple/white swirl by tqblanks. Nib - bock # 6. Price - 129 + p&p come with steel bock # 6. Nib 6 and international converter.