Capped TWSBI ECO Jade Jelly Bronze fountain pen, horizontal side profile view showing the bronze cap band and internal piston mechanism on a pure white background.
Uncapped TWSBI ECO Jade Jelly Bronze fountain pen and cap displayed diagonally on modern, angular white geometric props.
Capped TWSBI ECO Jade Jelly Bronze fountain pen, diagonal full-length view showing the clear demonstrator barrel and bronze trim on a white background.
TWSBI ECO Jade Jelly Bronze piston-filler fountain pen, full-length diagonal view with the translucent green cap securely posted on a pure white background.
Detail view of the TWSBI ECO Jade Jelly Bronze transparent resin barrel, revealing the internal black piston-filling mechanism with the cap in the background.
Macro close-up of the TWSBI ECO Jade Jelly fountain pen cap, highlighting the translucent milky green resin, bronze pocket clip, and red TWSBI finial logo.
Uncapped TWSBI ECO Jade Jelly Bronze fountain pen showing the clear demonstrator barrel and bronze-coloured nib, laid on a green and gold ink-wash background.
Editorial shot of the uncapped TWSBI ECO Jade Jelly Bronze fountain pen resting against a rough green gemstone on a reflective black background, showcasing the bronze-coloured nib.
Capped TWSBI ECO Jade Jelly Bronze fountain pen, horizontal side profile view showing the bronze cap band and internal piston mechanism on a pure white background.
Uncapped TWSBI ECO Jade Jelly Bronze fountain pen and cap displayed diagonally on modern, angular white geometric props.
Capped TWSBI ECO Jade Jelly Bronze fountain pen, diagonal full-length view showing the clear demonstrator barrel and bronze trim on a white background.
TWSBI ECO Jade Jelly Bronze piston-filler fountain pen, full-length diagonal view with the translucent green cap securely posted on a pure white background.
Detail view of the TWSBI ECO Jade Jelly Bronze transparent resin barrel, revealing the internal black piston-filling mechanism with the cap in the background.
Macro close-up of the TWSBI ECO Jade Jelly fountain pen cap, highlighting the translucent milky green resin, bronze pocket clip, and red TWSBI finial logo.
Uncapped TWSBI ECO Jade Jelly Bronze fountain pen showing the clear demonstrator barrel and bronze-coloured nib, laid on a green and gold ink-wash background.
Editorial shot of the uncapped TWSBI ECO Jade Jelly Bronze fountain pen resting against a rough green gemstone on a reflective black background, showcasing the bronze-coloured nib.

TWSBI ECO Piston Filler Fountain Pen — Jade Jelly Bronze

$56.00
/
Shipping calculated at checkout.
Nib Size
  • Edition: Jade Jelly Bronze — Features a translucent, milky jade-green cap and piston knob, perfectly offset by warm bronze trim.
  • Nib: JoWo Stainless Steel — German-made steel nib with a bronze-coloured finish, available in four sizes.
  • Filling System: High-Capacity Piston — Draw bottled ink directly into the clear demonstrator barrel to easily monitor ink levels at a glance.
  • Maintenance: User-Serviceable — Includes a custom TWSBI wrench and silicone grease for piston maintenance.
  • Origin: Made in Taiwan.

In Stock & Ready
Every tool is personally dispatched from our hubs within 48 hours (2 business days).

Standard Tracking (Registered Airmail)

  • United States: USD 14.99 | FREE over USD 150
    [✔ Duties & Taxes: Prepaid by Us]
  • Rest of the World: USD 8.99 | FREE over USD 99
  • Fully tracked to your doorstep via national post or local courier.

Expedited Priority (FedEx/DHL)

  • United States: USD 39.99 (3–5 Business Days)
    [⚠ ~$30 Carrier Fee: Billed to Recipient*]
  • Rest of the World: USD 29.99
  • The fastest global route via premium express couriers.

Our Logistics Commitment
Orders are handled at our precision fulfillment centers in Hong Kong or Taiwan. For our US community, we absorb import tariffs on Standard Shipping to keep rates fair.

*Note: US Expedited couriers invoice recipients directly for individual customs clearance and administrative fees (typically ~USD 30).

Rates are listed in USD; our system automatically converts these to your local currency at checkout.

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About the TWSBI ECO Piston Filler Fountain Pen - Jade Jelly Bronze

The TWSBI ECO Piston Filler Fountain Pen brings together high-capacity mechanical reliability and an accessible, everyday-carry design. Recognised globally as a benchmark for demonstrator pens, the ECO features a completely clear barrel that showcases your ink level and the inner workings of the piston mechanism.

This Jade Jelly Bronze edition introduces a soft, luminous aesthetic. It pairs a translucent, milky jade-green cap and piston knob with polished, warm bronze hardware. The German-made JoWo stainless steel nib features a matching bronze-coloured finish, creating a cohesive and striking visual contrast against the transparent barrel.

For maintenance, each pen includes a TWSBI wrench and silicone grease for servicing the piston mechanism. The pen can be disassembled for cleaning and maintenance, although full disassembly is best suited to experienced users. Please note that ink is not included.

Specifications ⌄
  • Brand: TWSBI
  • Series: ECO
  • Edition: Jade Jelly Bronze
  • Material: Resin
  • Trim: Bronze
  • Nib: JoWo Stainless Steel (Bronze-coloured)
  • Filling System: Piston Filler (Approx. 1.76 ml)
  • Length (Closed): 13.9 cm
  • Length (Posted): 16.8 cm
  • Weight: 21 g
  • Included Accessories: TWSBI Wrench & Silicone Grease
  • Origin: Taiwan
Compatible Accessories ⌄

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