The Twsbi Diamond Mini is the baby brother of the Twsbi Diamond, approx 3cm shorter when posted than the standard Diamond. Still holding a respectable 1.17ml of ink this is a fantastic pocket pen.
It uses a slightly smaller #4 size nib, whereas the regular Diamond 580 uses a larger #5 size.
Being a piston filler means it has the filing mechanism built into the body of the pen - simply dip the nib into a bottle of ink and turn the screw on the base of the pen and the ink chamber will fill up with ink.
With nibs sized from extra-fine to 1.1mm stub there is a Twsbi to suit every style of writing. If you're looking for smooth writing sensation we would recommend the medium nib or broader.
It uses a rubber o-ring on the cap thread to ensure an airtight seal to prevent ink drying out in the pen, whilst also ensuring that the cap is firmly attached to the pen when not in use.
This pen can be entirely disassembled for the purposes of cleaning and servicing. Instructions and necessary tools are supplied with each pen. However, the disassembly feature is only there for experienced users and is not necessary for normal use. Disassembly is at your own risk!
- Piston filler - use with bottled ink
- Ink capacity - 1.17ml
- Stainless steel nib
- Plastic body with aluminium sections and piston
- Dimensions (Closed): L 118mm x D 13.5mm
- Dimensions (Posted): L 142mm x D 13.5mm
- Weight: 19g
- Supplied gift boxed with disassembly tools
- Made in Taiwan
About Twsbi
TWSBI is renowned for its precision-engineered fountain pens, specialising in smooth, reliable piston-filling systems. Explore our collection to discover modern designs built for everyday writing and lasting performance.
View all Twsbi products we stock