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Description
TWSBI Eco Fountain Pen – Slate Blue Onyx
Bold Performance. Striking Design. Engineered for Everyday Writing.
The TWSBI Eco Slate Blue Onyx combines modern engineering with a stunning new colourway that’s as confident as your thoughts. Featuring a translucent deep slate barrel accented with onyx-black trim, this fountain pen is designed for writers who value both precision and personality.
Whether you're journaling, sketching, or powering through notes, the TWSBI Eco delivers a smooth, reliable writing experience — backed by the brand’s signature piston-filling system and crystal-clear ink window. It's the perfect balance of style, substance, and affordability.
Why You'll Love It:
💎 Slate Blue Barrel with Onyx Trim – A bold, sophisticated contrast
🔁 Piston-Filling System – Large ink capacity, perfect for daily writers
👀 Transparent Barrel – Easy to monitor ink level at a glance
🖋️ Stainless Steel Nib (Available in multiple sizes) – Smooth and precise writing
🔧 Disassemblable for Cleaning – Comes with wrench & silicone grease
📦 Presented in a Stylish TWSBI Gift Box – Great for gifting or collecting
✅ Available at Makoba – India’s Premier Pen Destination
At Makoba, India’s leading retailer for fine writing instruments, you’ll find the latest TWSBI releases including this exclusive Slate Blue Onyx edition. Perfect for enthusiasts, collectors, and first-time fountain pen users alike.
Perfect For:
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Writers seeking durability and affordability
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Students and professionals who write every day
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Collectors of limited and unique TWSBI editions
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Thoughtful gifting with a stylish twist
Technical Specification
Title
TWSBI Eco Fountain Pen - Slate Blue Onyx
Brand
TWSBI
Collection
Eco
Product Origin
Taiwan
Product Type
Fountain Pen
Nib Material
Steel
Nib Size
Extra Fine, Fine, Medium, Broad, Stub 1.1
Trim
PVD Trim
Colour
Blue & Clear
Cap & Barrel
Resin
Cap Mechanism How to remove the cap of the pen when its closed.
Screw-cap
Ink Capacity - Converter
1.80ml
Ink Filling Mechanism
Piston Filler
Diameter
12.8mm
Postable Can the cap be put on the back of the pen to make it longer.
Yes
Length When Closed
139mm
Length When Posted
167.5mm
Weight of Cap
8g
Weight of Barrel
13g
Total Weight The total weight of the pen including the cap and barrel. The pen is not filled with ink when measuring this.
21g
Warranty
As per International warranty guidelines provided by TWSBI Taiwan
Packaging
Original brand packaging with International warranty card
Customer Reviews
FAQ’s
Wondering what is our return / refund policy?
We do accept returns and refunds. Here are a few things to keep in mind:
- Product has to be in an unused condition with all its tags, warranty certificates and user manuals (if any) in tact.
- Return request is raised within 3 days of receipt of product.
- Consumables like inks, refills and paper products cannot be returned or exchanged.
- For more information on returns and (or) refunds, check out our return / refund policy.
When are orders shipped?
Every order creates an adrenaline rush in our team so any order received before 1PM will usually be shipped on the same day itself. However, due to unforeseen circumstances if we are not able to get your ready, rest assured we will ship it the next day. For more information on shipping, check out our shipping policy section.
Fretting for an online purchase?
We do not consider ourselves as a sales store, but more like your personal consultants.
- Our team is always ready to guide you through your journey at Makoba - whether that is online or in store.
- Thats right! We have 4 exclusive boutiques in the country that are just waiting for you.
- Visit the Our Store page, find your nearest store and connect with us immediately
Wondering the importance of pens in today's digital age?
Your great idea is just waiting to be put on paper. Put that piece of writing instrument into motion and see its magic.
- No digital form will give you as close a satisfaction that you get from writing.
- There's a reason why journaling, note-taking and writing down ideas is no more an outdated activity.
