The TWSBI ECO is an economical fountain pen that holds just as much ink as the Diamond 580 but has an affordable price that is appreciated by the first-time fountain pen user. The barrel is sleek, round and transparent and the cap has a hexagonal shape that can be posted.

• Piston filling mechanism,Ink capacity of 1.5 ml
• #5 Black-coloured stainless steel nib
• Crystal clear acrylic barrel with screw on slate blue cap and piston nob
• Onyx Black trim and clip
• Inner cap to ensure a perfect seal when not in use
• Slate Blue with Onyx