TWSBI Diamond 580 AL R Sunset Yellow Fountain pen

The TWSBI Diamond 580 AL R Sunset Yellow is one of the most affordable fountain pens that uses the piston filling system. The pen is made of transparent polycarbonate, so that the piston filling mechanism and the ink are clearly visible. The chrome-plated details give the pen a modern look. The cap is smooth while the body is faceted. With the TWSBI Diamond 580 AL R Navy Blue, the contrasting parts are all made of yellow metal. The TWSBI logo can be found on the top of the cap.

The TWSBI Diamond 580 fountain pen has a polished stainless steel nib with the logo engraved in it in different widths.

TWSBI fountain pens can be completely disassembled for maintenance purposes. Instructions and tools are included with each TWSBI. Disassembling the TWSBI fountain pens is only intended for the experienced user and is not necessary for normal use. Disassembling TWSBI fountain pens is therefore entirely at your own risk.

With more than 40 years of experience in producing writing instruments for other brands, Ta Shin Precision decided to sell writing instruments under its own label, TWSBI. The name TWSBI consists of two parts, TWS and BI. 'TWS' are the reversed initials of the phrase 'San Wen Tong', which means Hall of the Three Cultures, and 'BI' is the literal translation of writing instrument.