TWSBI ECO Black Marble with Bronze Fountain Pen

Drawing inspiration from the timeless elegance of marble, the ECO Black Marble with Bronze edition pairs a richly veined black marbled cap with warm bronze accents, creating a refined balance of depth and contrast. The dark marbling evokes natural stone, while the bronze-finished hardware adds a subtle metallic warmth that elevates the overall aesthetic. The clear demonstrator barrel reveals both the ink supply and piston mechanism, showcasing the precision engineering that defines TWSBI. The marbled resin cap is complemented by bronze-plated trim and clip, along with the signature TWSBI red emblem on the finial. A stainless steel nib finished in bronze provides a smooth, reliable writing experience, offering consistent ink flow with gentle feedback.

Equipped with a high-capacity piston-fill system, the ECO Black Marble with Bronze is designed for extended writing sessions with fewer refills. A screw-on cap with a rubber O-ring ensures a secure seal, helping to prevent 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 black marbled cap with bronze 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