TWSBI Diamond 580ALR Nickel Gray Fountain Pen Nib EF

The ever popular 580AL has even more detail on the grip and cap (matte finish). A piston filler type fountain pen. Easy twist and fill, no hassle. 580 has improved the smoothness of cap thread rotation. 580 has increased ink capacity, about 30% more than 530. There are nib sizes of EF, F, M, B, and Stub1.1. Please see other listings for different sizes A quick no-brainer's guide to choosing nib size in the overly complicated world of fountain pens: If you're on the small side, go with EF If you're a regular writer, F is the most popular If you tend to lean toward larger fonts, M will be perfect B is for Statement!! Sign B and write your header on B. B Stub's nib coloring/shading is italic to your writing style (do you have a special card or invitation?)