---
product_id: 27484672
title: "ECO Fountain Pen Clear EF Nib"
brand: "twsbi"
price: "S$76"
currency: SGD
in_stock: true
reviews_count: 12
url: https://www.desertcart.sg/products/27484672-eco-fountain-pen-clear-ef-nib
store_origin: SG
region: Singapore
---

# Clear demonstrator body Multiple nib sizes (EF to Stub 1.1) Piston filler system ECO Fountain Pen Clear EF Nib

**Brand:** twsbi
**Price:** S$76
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Boldly, Show Clearly — The Pen That Means Business

## Quick Answers

- **What is this?** ECO Fountain Pen Clear EF Nib by twsbi
- **How much does it cost?** S$76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/27484672-eco-fountain-pen-clear-ef-nib)

## Best For

- twsbi enthusiasts

## Why This Product

- Trusted twsbi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Show Off Your Ink:** Transparent body reveals your ink color and piston action, making every pen a conversation starter.
- • **Beginner to Pro Ready:** Trusted by fountain pen newbies and aficionados alike for smooth, reliable everyday writing.
- • **Effortless Ink Refills:** Piston filler mechanism lets you refill quickly and cleanly—no cartridges needed.
- • **Secure Seal Technology:** Inner cap ensures your pen stays perfectly sealed, preventing ink dry-out during downtime.
- • **Precision Writing Options:** Choose from Extra Fine to Stub 1.1 nibs for tailored writing or doodling styles.

## Overview

The TWSBI ECO Fountain Pen Clear EF Nib is a piston-filling, transparent demonstrator pen offering a smooth writing experience with multiple nib size options. Designed for both beginners and experts, it features a secure inner cap seal and a large ink reservoir, combining practicality with stylish ink visibility.

## Description

Comes in EF, F, M, B, Stub1.1 nib choices Piston Filler Fountain pen. Simply unscrew the end cap, dip into ink, screw back the end cap, and your done! Ready to write!! Pen cap has an inner cap to insure a perfect seal when stored away. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker.

Review: Great writing tool and an affordable price. - I've been carting around a 'Fine' point Eco, and while I enjoy writing with it, it's a bit too wet for my style. The EF is perfect for my writing - good for small and large writing with a much better 'doodle' capability. The large chamber is great so I don't have to refill it every other week, the nib writes smooth, and the look of the demonstrator with my Special Reserve - Shoreline Gold is chic. I'm very happy with my purchase, and similar to my other Eco, I look forward to many words in print.
Review: Wonderful Starter Pens! - This pen is widely recognized by fountain pen enthusiasts as one of the top two or three picks for first-time fountain pen buyers. The value for money is outstanding, the nib quality is great, and the clear "demonstrator" body showcases the piston fill system and whatever ink you choose. Maybe not the choice for a "serious" fountain pen on an executive desk, but that's hardly the point. These are fantastic fun pens you can collect and enjoy without going broke. Don't forget a bottle of ink!

## Features

- Piston Filler Fountain Pen
- Pen cap is able to post onto the back of the pen
- Comes in EF, F, M, B, or stub1.1 nib size choices.
- Inner cap to insure a perfect seal when pen is capped
- Clear demonstrator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EINGNUU |
| Best Sellers Rank | #182,097 in Office Products ( See Top 100 in Office Products ) #831 in Fountain Pens |
| Brand | TWSBI |
| Closure | Screw |
| Color | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (499) |
| Date First Available | April 19, 2016 |
| Grip Type | plastic |
| Ink Color | Variable |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.704 ounces |
| Item model number | TW100011 |
| Line Size | 0.3mm to 1.9mm |
| Manufacturer | TWSBI |
| Manufacturer Part Number | TW100011 |
| Material Type | Plastic |
| Number of Items | 1 |
| Package Dimensions | 8.58 x 6.54 x 1.1 inches |
| Pencil Lead Degree (Hardness) | F |
| Point Type | Extra Fine |
| Size | 1 Count (Pack of 1) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** TWSBI
- **Color:** Clear
- **Ink Color:** Variable
- **Writing Instrument Form:** Fountain Pen

## Images

![ECO Fountain Pen Clear EF Nib - Image 1](https://m.media-amazon.com/images/I/419GkpVx-+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great writing tool and an affordable price.
*by M***R on April 18, 2023*

I've been carting around a 'Fine' point Eco, and while I enjoy writing with it, it's a bit too wet for my style. The EF is perfect for my writing - good for small and large writing with a much better 'doodle' capability. The large chamber is great so I don't have to refill it every other week, the nib writes smooth, and the look of the demonstrator with my Special Reserve - Shoreline Gold is chic. I'm very happy with my purchase, and similar to my other Eco, I look forward to many words in print.

### ⭐⭐⭐⭐⭐ Wonderful Starter Pens!
*by F***5 on November 8, 2025*

This pen is widely recognized by fountain pen enthusiasts as one of the top two or three picks for first-time fountain pen buyers. The value for money is outstanding, the nib quality is great, and the clear "demonstrator" body showcases the piston fill system and whatever ink you choose. Maybe not the choice for a "serious" fountain pen on an executive desk, but that's hardly the point. These are fantastic fun pens you can collect and enjoy without going broke. Don't forget a bottle of ink!

### ⭐⭐⭐⭐⭐ Ink lasts forever
*by A***E on June 18, 2025*

I’ve been using this pen for about 4 years now, and I’m finally ready to compare it to others. First, I have to agree with some reviewers that this pen, even with an EF tip, seems to write a bit bigger and wetter than other tips this size. So, I’d say it’s more like a M tip. I also use a couple of different Pilot pens, both in F and EF tip, and I can honestly say that this pen needs cleaning almost never. In contrast, Pilot pens dry out at the tip and don’t write smoothly or at all sometimes if they’re not used regularly (at least once a week). But not this TWSBI ECO pen! I can let it sit for weeks and not touch it, and when I pick it up to write with it again, it’s as if it were brand new and writes just as smoothly as when I first filled it. Another thing I love about this pen is the amount of ink it holds. It never really dissipates while it’s sitting, unlike the Pilot pens which seem to evaporate the ink a lot more. I have a couple of these ECO pens, so sometimes one will sit while I use another, but they’ve all been consistently used for about the past 4 years now. If you love to write or sketch with fountain pens, but don’t want to spend hundreds of dollars, I highly recommend this pen. It’s a great choice for a pen that won’t break the bank and will keep writing for years with little to no maintenance.

## Frequently Bought Together

- TWSBI ECO Fountain Pen Clear EF Nib
- Platinum Carbon Ink Bottle 60ml - Black
- Noodler's Black Waterproof Fountain Pen Ink - Bulletproof,3 ounce

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-18*