ECO Fountain Pen | Persian Green

The TWSBI ECO is a wonderful everyday pen for beginners and for anyone who likes to write with bottled inks. The ECO has a built-in piston filling mechanism that’s easy to use, and a special cap design ensures a tight seal. The Persian Green edition has a streamlined plastic body that shows off the ink and mechanisms inside, with a teal green cap and piston knob.

• Piston filling mechanism
• Stainless steel nib available in multiple sizes
• Uses bottled ink only (not included)
• Comes in a box with wrench and silicone grease for maintenance
• 5.5″ when closed
• 6.3″ with cap posted

TWSBI made a name for themselves with their high-quality, affordable demonstrator pens, which let you see the inner workings of your pen. The built-in filling mechanisms they use are usually only found in much more expensive fountain pens. TWSBI encourages writers to get to know the mechanics of their pens by disassembling and maintaining them at home.