Pen nib: M (Medium) nib, 21K. The largest diameter: 18mm approx. I will be able to pack it together. International Buyers - Please Note.The item "SAILOR Professional Gear Tequila Sunris Fountain Pen Cocktail Series Orange 21K" is in sale since Friday, May 31, 2019. This item is in the category "Collectibles\Pens & Writing Instruments\Pens\Fountain Pens\Sailor". The seller is "tokyo_sakura_street_japan" and is located in Tokyo. This item can be shipped to United States.