TWSBI | Fountain Pen | Eco | Slate Blue

Size: Medium
₹. 8,750
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TWSBI Eco Fountain Pen – Slate Blue

A muted, sophisticated Slate Blue finish on TWSBI's best-selling piston filler, with a demonstrator body that lets you watch the piston mechanism at work and always see how much ink remains.

A polished stainless steel nib is available in five sizes, and the threaded cap posts securely on the back of the pen for balanced writing. An inner cap keeps the nib sealed and ready to write even after weeks unused.

Key Features

  • Muted Slate Blue demonstrator cap and barrel
  • Piston filling mechanism, holds up to 1.7ml of ink
  • Stainless steel nib, available in five sizes
  • Threaded, postable hexagonal cap with inner seal
  • Fully disassemblable for cleaning and maintenance

Brand TWSBI
Product Origin Taiwan
Product Type Fountain Pen
Colour Slate Blue
Nib Material Stainless Steel
Nib Size Extra Fine, Fine, Medium, Broad, Stub 1.1
Body Material Resin (Demonstrator)
Trim Chrome Plated
Ink Filling Mechanism Piston Filler (~1.7ml Capacity)
Cap Mechanism Threaded, Postable

It uses a piston filling mechanism that draws ink directly from a bottle, holding up to 1.7ml — no cartridges or converters needed.

This pen is available in Extra Fine, Fine, Medium, Broad and Stub 1.1 stainless steel nib sizes.

Yes, the translucent demonstrator barrel lets you see the ink level and piston mechanism at any time.

It's made by TWSBI in Taiwan.