The TWSBI ECO is the brand's most affordable fountain pen model, offering excellent value without compromising quality. It features a built-in piston-filling mechanism, a transparent barrel that lets you view the ink level, and a clear cap and piston knob for a clean, minimalist look. The stainless steel nib writes smoothly with a slight touch of feedback, providing a pleasant writing experience. While the smooth clear barrel offers less grip than textured pen bodies, the pen remains comfortable and well-balanced in hand. Overall, the TWSBI ECO is a reliable and enjoyable everyday fountain pen for both beginners and enthusiasts.

This pen used bottled ink that is not included with the pen. Ink sold separately.

TWSBI designed this pen to be disassemble and reassembled by the user. This reflects the traditional experience of owning a fountain pen. It comes with a wrench and a vial of silicon grease that can be used for at home maintenance.

Note: Nibs and feeds can be difficult to disassemble, please use care as they are fragile.

Diameter – Body 12.8mm (0.50in), Length -Overall (Closed) 138.8mm (5.46in), Length - Overall (Posted) 167.5mm (6.59in), Weight - Overall (g)21.0g, Max Ink Capacity -  1.5ml