Our PIUMA and ITALIA minimal fountain pens are designed to allow changing the nibs. We offer additional nibs in various sizes (line thickness) and materials. All nibs fit any PIUMA or ITALIA fountain pens. It is very easy to change them, you just need to unscrew the entire nib system and screw in a different one.
Black Stainless Steel: F, M, B
Polished Stainless Steel: F, M, B, Calligraphy 1.1
Titanium: F, M