---
product_id: 88715996
title: "TWSBI ECO T Clear Fountain Pen F nib"
brand: "twsbi"
price: "$0.66"
currency: USD
in_stock: false
url: https://www.desertcart.us/products/88715996-twsbi-eco-t-clear-fountain-pen-f-nib
store_origin: US
region: United States of America
---

# Inner cap perfect seal Pronounced grip for control Piston filler ink system TWSBI ECO T Clear Fountain Pen F nib

**Brand:** twsbi
**Price:** $0.66
**Availability:** ❌ Out of Stock

## Summary

> 🖋️ Write Boldly, Seal Perfectly, Grip Confidently!

## Quick Answers

- **What is this?** TWSBI ECO T Clear Fountain Pen F nib by twsbi
- **How much does it cost?** $0.66 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/88715996-twsbi-eco-t-clear-fountain-pen-f-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

- • **Seal the Deal:** Inner cap ensures airtight closure, preventing ink drying and leaks
- • **Endless Ink Flow:** Massive piston filler reservoir for uninterrupted writing sessions
- • **Tailored Precision:** Available in 5 nib sizes (EF, F, M, B, Stub 1.1) to match your unique writing style
- • **Sleek & Sustainable:** Clear plastic body with eco-friendly design and easy disassembly for cleaning
- • **Grip with Confidence:** Ergonomic, pronounced grip section designed for bigger hands and beginners alike

## Overview

The ECO T Clear Fountain Pen by TWSBI combines a large piston ink reservoir with an airtight inner cap to keep your ink fresh. Its ergonomic triangular body and pronounced grip section make it ideal for beginners and professionals seeking comfort and control. Available in five precise nib sizes, this eco-friendly pen offers smooth, reliable writing with easy maintenance, making it a top choice for everyday use and creative expression.

## 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. ECO-T has a slightly more pronounced grip section; to help with learning correct writing posture for kids, new enthusiast, and anyone who likes a little bit more structure to the grip area. Cap and end cap also has a rotary triangular shape design.

## 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
- More pronounced GRIP section for bigger hands, beginners, children.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JK2Z9H3 |
| Additional Features | Eco Friendly |
| Age Range Description | Adult |
| Best Sellers Rank | #152,297 in Office Products ( See Top 100 in Office Products ) #634 in Fountain Pens |
| Body Shape | Triangular |
| Brand Name | TWSBI |
| Closure Type | Screw |
| Color | Clear |
| Customer Reviews | 4.8 4.8 out of 5 stars (197) |
| Drill Point | Fine |
| Grip Type | Pronounced |
| Hand Orientation | Ambidextrous |
| Hardness | F |
| Included Components | Inner Cap |
| Ink Base | Water |
| Ink Color | clear |
| Item Diameter | 12.8 millimeters |
| Item Dimensions | 5.43 x 0.5 x 0.5 inches |
| Item Weight | 50 g |
| Line Size | Line sizes: Extra Fine (EF), Fine (F), Medium (M), Broad (B), and Stub 1.1 |
| Manufacturer | TWSBI |
| Material Type | Plastic |
| Model Number | TW100062 |
| Recommended Uses For Product | Home, School |
| Unit Count | 1 Count |
| Writing Instrument Form | Fountain Pen |
| Writing Technique | fountain pen |

## Product Details

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

## Images

![TWSBI ECO T Clear Fountain Pen F nib - Image 1](https://m.media-amazon.com/images/I/515-6EUyihL.jpg)

## Frequently Bought Together

- TWSBI ECO T Clear Fountain Pen F nib
- Asvine Hongdian Fountain Pen Bottled Ink Black, 60ml Fountain Pen Bottled Ink, Non Carbon

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**Shop now:** [https://www.desertcart.us/products/88715996-twsbi-eco-t-clear-fountain-pen-f-nib](https://www.desertcart.us/products/88715996-twsbi-eco-t-clear-fountain-pen-f-nib)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-02*