This spare nib unit is compatible with the TWSBI Diamond Mini. It comes in a range of widths, including Extra Fine, Fine, Medium, Broad and a Stub 1.1.mm. It will also fit the previous generation 540 and 530 fountain pens, and is quick and simple to install.
These will also fit the TWSBI ECO model, but you must remove the nib and feed from the collar.
TWSBI’s roots can be traced back to 1969, with the establishment of Ta Shin Precision in Taiwan. Having spent 50 years as an OEM manufacturer for numerous global companies, in 2009, they decided to launch their own brand of fountain pen – TWSBI. Ever since, their products have gained immeasurable popularity, thanks to their blend of scientific precision with modern flair. Their various ranges always prove a hit with customers, with the brand regularly seeking feedback from users prior to developing their next release.
UK Delivery Information
Free Royal Mail 48 (2-4 day) shipping on orders over £45.
Upgraded to 24 (1-2 day) or Special Next Working Day Delivery based on order value too. Learn More
Non-UK Orders
EU Orders will now have VAT applied at checkout, so there are NO fees due before delivery.
US Orders will have duties applied at checkout, so NO additional fees due before delivery
Other countries will be tax free at checkout, but duties may be charged by your local customs office before delivery - We cannot control this as each country has their own rules for different products.
