TWSBI is a well-known name when it comes to fountain pens. They have been producing high-quality writing instruments since 1959.
If you own a Diamond 580 fountain pen and are looking to replace your nib, then look no further than TWSBI's authentic spare nib sets. Available in EF, F, M, B and Stub1.1 sizes, these nibs are sure to provide you with the perfect writing experience.
And if you have a previous generation model like the 540 or 530? No problem! These nibs will fit those too.
Please note that the photo is for illustration purposes only and may not represent the actual product.