TWSBI ECO Fountain Pen - Cosmos Blue with Onyx Ink Gift Set The gemstone's harmonious blend of

The gemstone's harmonious blend of colors makes it a symbol of both strength and serenity

Rue De La Verrerie ink by Jacques Herbin captures the essence of Parisian elegance with its deep

This unique positioning allows one to soak up every last drop of ink from a bottle

Made with high-quality materials

the rabbit is known for its serenity

TWSBI ECO Fountain Pen - Cosmos Blue with Onyx Ink Gift Set The gemstone's harmonious blend ofLaunch your writing to a whole new galaxy with TWSBI ECO Fountain Pen Cosmos Blue with Onyx Cosmos Blue with Onyx of the ECO fountain pen collection is a limited edition made with mixed color acrylic introduced in November 2025. The making of Cosmos Blue involves mixing green, dark blue and light blue acrylic for the cap and piston knob and pairing with an onyx colored nib and trim. The colors of the acrylic are mixed during the injection molding