The TWSBI ECO, shown here in Black, is a classically styled fountain pen with a piston ink-filling system, smooth-writing steel nib and a screw-on cap, at a lower price point than any of the other TWSBI fountain pens thus far. The traditional mechanism of the fountain pen, combined with a modern industrial design, embodies both the past and the present. This pen runs about the same in length as the Diamond 580 and is just a tiny bit thinner.
The TWSBI ECO piston ink-filling system uses only bottled ink and the clear body allows the user to view the level of ink remaining in the pen at all times. One difference between the ECO fountain pen and the other TWSBI pens is that the ECO does not have a removable nib unit, and the barrel and nib unit are all one piece. There will not be separate nib units for this pen.
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