Experience the perfect blend of affordability, performance, and modern design with the TWSBI ECO Fountain Pen in Slate Blue with Onyx. Featuring a crystal-clear acrylic barrel, this pen allows you to monitor your ink levels while showcasing your favorite inks. The sleek slate blue cap and finial contrast beautifully with the black onyx trim, creating a refined and sophisticated look.
Designed with a piston-filling mechanism, the TWSBI ECO offers a generous ink capacity, making it an excellent choice for everyday writers and fountain pen enthusiasts. The black stainless steel nib provides a smooth and consistent writing experience, available in multiple sizes to suit your writing preference.
TWSBI embraces a hands-on approach to pen ownership, allowing users to disassemble and maintain their pens. Each TWSBI ECO comes with a wrench and silicone grease for long-term care, though they are not required for immediate use.
Key Features:
Brand | TWSBI |
Product Type | Fountain Pen |
Collection | TWSBI ECO |
Color | Slate Blue with Onyx |
Body Material |
Resin |
Cap Type | Screw-cap |
Compatible inks & refills |
Bottled ink |
Filling Mechanism |
Piston |
Grip Material |
Resin |
Nib Size | Extra Fine, Fine, Medium, Broad, Stub 1.1mm |
Nib Color | Black |
Nib Material | Steel |
Diameter - Body | 12.8mm (0.50in) |
Diameter - Cap (without clip) | 14.9mm (0.59in) |
Diameter - Cap (with clip) | 17.3mm (0.68in) |
Diameter - Grip (mm) | 9.1mm |
Length - Body | 131.6mm (5.18in) |
Length - Cap | 60.4mm (2.38in) |
Length - Nib | 18.5mm (0.73in) |
Length - Overall (Closed) | 138.8mm (5.46in) |
Length - Overall (Posted) | 167.5mm (6.59in) |
Weight - Body | 13g (0.46oz) |
Weight - Cap | 8g (0.28oz) |
Weight - Overall (g) | 21.0g |
Max Ink Capacity - Piston Vac | 1.76ml |