ECO Fountain Pen Slate Blue Onyx * TWSBI F

 The TWSBI ECO fountain pen features a transparent body and a piston-filling system that can hold nearly 2 ml of ink. A well-sealing cap ensures that the pen writes at every start with a smooth ink line. The steel nib is available in different line widths from EF to Stub and writes effortlessly.

 Each ECO comes with a wrench and silicone grease to dismantle and clean the pen easily. It is not necessary every time, but it is useful if you have used some characterful ink.

 Changing the nib on the TWSBI ECO requires some attention. The feed is quite sensitive and there are no separate nibs for sale for the ECO/T. Search the web for information before you start this job.