Koroit Opal Milano Fountain Pen with Regular and Flex Nib Options

Inspired by vintage flat top pens of yesteryear, the Milano is machined from beautiful Acrylic and Ebonite material. Ebonite is a natural hard rubber, expect to see slight variation from the pictures (no two pens are alike!). Osprey Pens Milano Measurements: Length (capped): 142.0 mm/5.59″ Diameter (section): 10.6 – 11.4 mm/0.41″ – 0.45″ Weight (all): 26 g/ 0.9 oz This listing allows you to choose a steel clip or a gold clip to be outfitted with your Milano. Note that the clip may come with a different imprint than what is shown in the pictures. One Pen, Many Nibs: Choice of Additional Nibs Keeping in line with the Osprey philosophy of interchangeable nib units, a wide variety of nib units are offered below that will work with this pen.  Click on the hyperlinked choices to learn more about the nibs. Choose from Osprey Regular Size 6 nib units in Steel or 2Tone. All Regular nibs used for everyday writing, come with a plastic feed and accept international standard converters or pre-filled ink cartridges, giving you the flexibility to use either bottled ink or pre-filled ink cartridge. The pen is fitted with an Osprey custom converter by default and is packaged in a premium pen box. #6 Steel  Economical Special Grinds such as the Architect Broad, Architect BB, Zoom BB, Broad Left-Oblique or Broad Right-Oblique, Broad-Stub or Double Broad Stub. Similar to the Regular Size 6 nibs, the Speciality Grind nibs also accept international standard converters or pre-filled ink cartridges, giving you the flexibility to use either bottled ink or pre-filled ink cartridge or use with Osprey custom converter.   #5.5 Ultra-flex, #6 Ultra-flex (second generation), Zebra G or Titanium Ultra-flex assemblies:  Ultra-flex (UF) nibs are for ardent calligraphy users! You can purchase these as complete assembly for a seamless plug & play experience, or buy just nib units to swap. The assembly consists of an ultra-flex nib unit of your choice, which threads into the Outer Section of the pen, and comes with an Osprey converter. Only fountain-pen friendly inks  are recommended to avoid clogging the feed. All ultra-flex and Zebra G nib units come with ebonite feed. Size 5.5 Ultra-flex, Zebra G Flex and Titanium Ultra-flex are non-cartridge type, meaning they do not take any prefilled ink cartridges or international converters. They are made to work with custom Osprey converters. Size 6 Ultra-flex nib units (second generation) on the other hand, take both, cartridge or  converter, which means you can use prefilled ink cartridges or use bottled ink. If you choose #5.5Ultra-flex or Zebra G flex nib-units/assemblies, be sure to add a nib-block kit , if you don't already have one. You can download a maintenance guide that helps in easy disassembly and assembly, when the feeds get clogged over time with use. The nib block does not accommodate size 6 nibs, you will instead need to use the grip provided in the kit for disassembly and assembly.