5.00 out of 5
Based on 3 reviews.

In stock
Brand: TWSBI


The TWSBI Diamond Mini White RG II is a pocket fountain pen with piston filling system, resulting in a large ink capacity (1.3ml) for such a small fountain pen. The TWSBI Diamond Mini is made of polycarbonate, with rose gold plated details. The cap is smooth while the barrel is faceted. The pen has clear barrel that shows the mechanism very well. The clear body gives the TWSBI also a different look depending on the ink it is filled with. The TWSBI logo finishes the top of the cap.

The TWSBI Diamond Mini has a polished stainless steel nib engraved with the TWSBI logo, available in several sizes.

TWSBI fountain pens can be entirely disassembled for the purposes of cleaning and servicing. Instructions and necessary tools are supplied with each TWSBI fountain pen. Please note that the disassembly feature is only there for experienced users and is not necessary for normal use. Disassembly is at your own risk!

With a history of more than 40 years of manufacturing, including producing high-end pens for other brands, Ta Shin Precision decided to start selling under their own brand, TWSBI. The name TWSBI is made up from TWS and BI. ‘TWS’ is the reversed initials of the phrase ‘San Wen Tong’, translated Hall of Three Cultures, and ‘BI’ literally means writing instrument.

Additional information

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3 reviews for TWSBI Diamond Mini White RG II Fountain pen

  1. English


    I am satisfied with everything about this fountain pen. Its delivery was fast and the packaging was good.

  2. English

    Nathalie C

    This Fountain Pen has everything for me: mini, clear body, white and rosegold parts and nib rosegold! I chose the EF nib and I don’t regret my choice. It’s always a pleasure to open a package from Appelboom because it’s wrapped as a gift and customer service was very helpful during my order.

  3. English

    Zaida Gonzalez (verified owner)

    I’m in love with this model, I was waiting so long for a new release of that model. 🙂 It’s my first B nib and it’s really smooth. And so pretty! Sorry not sorry, I’m a big Twsbi fan. 🙂

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