TWSBI Eco Cerulean Fountain pen

The TWSBI Eco (short for economical) is now available in Cerulean, the beautiful bright blue colour of the sky. The name ‘cerulean’ is derived from the Latin word caeruleus (dark blue, blue, or blue-green), which in turn stems from the word caerulum, the diminutive form of caelum (heaven, sky).

The Eco is the least expensive fountain pen that uses the piston filling mechanism. The pen has a clear barrel that shows the mechanism very well. The clear body gives the TWSBI also a different look, changing with the ink it is filled with. The faceted cap gives the TWSBI Eco a powerful appearence. The TWSBI logo sits proudly at the top of the cap. 

The TWSBI Eco Fountain pen 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.