The InexPens 2.5mm Stub Nib is an extremely smooth size #5 replacement nib. It's made of steel and delivers a great writing experience.
Just bought a Pilot Plumix BB! It has an italic nib of 1mm : r/fountainpens
Handmade 2.5mm stub nib, Popular size #5 replacement nibs, Stainless steel, Calligraphy fountain pen nibs, Smooth writing experience, Custom stub
2.5mm Stub Nib
Zebra Fountain Pen, Fine Point, 0.6mm, Assorted Non-Toxic Ink Colors, 4-Pack
Dodec a way to start and continue… – Inks, Thinks and other Things
Ink Cartridge Opening Sizes - Inky Thoughts - The Fountain Pen Network
Zebra Pen Fountain Pen, Fine Point, 0.6 mm, Assorted Non-Toxic Ink Colors, 4-Pack
MB 149 Music Nib - Calligraphy Vs Signature - Montblanc - The Fountain Pen Network
Tools: Favorite Fountain Pens
Dodec a way to start and continue… – Inks, Thinks and other Things