TWSBI ECO Carrara with Onyx Fountain Pen

Drawing inspiration from the timeless elegance of marble, the ECO Carrara with Onyx edition pairs a striking white marbled cap with deep onyx-black accents for a bold monochrome contrast. The clear demonstrator barrel reveals both the ink supply and piston mechanism, showcasing the precision engineering that defines TWSBI. The cap’s marbled resin evokes the smooth, veined beauty of Carrara stone, finished with polished black hardware and the signature TWSBI red emblem on the finial. The stainless steel nib, plated in black, offers a dependable and consistent writing experience, balancing smooth ink flow with subtle feedback. Equipped with a high-capacity piston-fill system, the ECO Carrara with Onyx ensures fewer interruptions during long writing sessions. A screw-on cap with rubber O-ring provides a secure seal, preventing leaks and evaporation.

As with all ECO models, the pen can be fully disassembled for cleaning and maintenance (tools included), though TWSBI recommends this only for experienced users.

Key Features

• Unique Carrara marbled cap with onyx trim
• Polycarbonate construction creates scratch resistant, resilient and crystal clear finish
• Hexagonal shaped cap and piston mechanism tip
• Twist action piston fill mechanism
• Stainless steel (in Bronze) nib with intricate TWSBI logo and detailing
• Screw close cap
• Rubber O-ring prevents leakage and drying
• Gently tapered grip section
• TWSBI logo button on end cap
• TWSBI presentation box
• Lifetime manufacturer warranty
• Dimensions (Closed): L 140mm x D 15mm
• Dimensions (Posted): L 168mm x D 15mm
• Diameter taken at widest point (not including clip)
• Weight: 21g