---
product_id: 447668803
title: "erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter"
brand: "erofa"
price: "A$42"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/447668803-erofa-hongdian-fountain-pen-set-ink-cartridges-blue-color-pack
store_origin: AU
region: Australia
---

# Quick-dry, smudge-free ink 30-pack bulk ink supply 3.4mm bore diameter precision erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter

**Brand:** erofa
**Price:** A$42
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Boldly, Flow Freely – Never Run Out of Ink Again!

## Quick Answers

- **What is this?** erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter by erofa
- **How much does it cost?** A$42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/447668803-erofa-hongdian-fountain-pen-set-ink-cartridges-blue-color-pack)

## Best For

- erofa enthusiasts

## Why This Product

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

## Key Features

- • **Smudge-Proof Speed:** Ink dries in seconds, preserving your professional notes and signatures
- • **Bulk Pack Advantage:** 30 cartridges to keep your creativity flowing without pause
- • **Endless Writing Flow:** Smooth, uninterrupted ink delivery for flawless penmanship
- • **Perfect Fit Precision:** 3.4mm bore diameter ensures compatibility with Hongdian and similar fountain pens
- • **Safe & Natural Formula:** Neutral pH, non-toxic ink made from natural dyes for worry-free use

## Overview

The erofa Hongdian Fountain Pen Set offers a generous 30-pack of blue ink cartridges with a precise 3.4mm bore diameter, compatible with Hongdian and similar fountain pens. Crafted with neutral pH, non-toxic natural dyes, this ink dries quickly to prevent smudges, ensuring a smooth, reliable writing experience every time.

## Description

How to fill a fountain pen with cartridges:  Insert the narrow end of the new cartridge into the black of section block with enough pressure to create a snug fit. The pin inside the section block will puncture the seal of the cartridges, allowing ink to flow into the section block. Screw the barrel on over the cartridge into the section block.  Notice: It can take a while for the ink to fully saturate the pen, so don’t worry if it doesn’t start writing right away. You can swing the pen to make a few drops of ink coming out of the nib, so that it can flow easily. When you fill the pen at the first time, you can swing the pen to make a few drops of ink coming out of the nib, so that it can flow easily.

## Features

- [ LARGER PACK ]: 30 pack of 3.4 mm bore diameter Blue ink cartridges ( compatible with fountain pens take 3.4mm cartridges such as hongdian)
- [ DIMENSION ]: Length Appr 51mm; Cartridge Diameter Appr4-7mm; bore diameter 3.4mm
- [ NEUTRAL PH & NON-TOXIC ]: The ink has been carefully manufactured using only natural dyes giving the composition a neutral, natural, and non-toxic PH.
- [ QUICK TO DRY ]: HongDian Designs ink takes only a few seconds to dry ensuring your important writing moments are not ruined by smudges or smears.
- [ EASY TO WRITE ]: With no break in ink flow, enjoy a smooth and optimal writing experience as your fountain pen glides elegantly across paper.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Hongdian |
| Brand | erofa |
| Model number | HDBAU30INKED |
| Package Dimensions | 23 x 17.7 x 2 cm; 100 g |
| Color | Blue |
| Point Type | Bold |
| Ink Color | Blue |
| Manufacturer Part Number | HDBIC30SER |
| Item Weight | 100 g |

## Product Details

- **Brand:** erofa
- **Style:** Fountain
- **Item weight:** 0.1 Kilograms
- **Number of pieces:** 30
- **Manufacturer:** Hongdian

## Images

![erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Image 1](https://m.media-amazon.com/images/I/51VkFzejl0L.jpg)
![erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Image 2](https://m.media-amazon.com/images/I/51yAhyggk4L.jpg)
![erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Image 3](https://m.media-amazon.com/images/I/617JGwu6PDL.jpg)
![erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Image 4](https://m.media-amazon.com/images/I/51P6dYhgaaL.jpg)
![erofa Hongdian Fountain Pen Set Ink Cartridges Blue Color, Pack of 30 Ink Refill Cartridges, 3.4 mm Bore Diameter - Image 5](https://m.media-amazon.com/images/I/51HDsoXVnkL.jpg)

## Available Options

This product comes in different **Color** options.

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**Shop now:** [https://www.desertcart.com.au/products/447668803-erofa-hongdian-fountain-pen-set-ink-cartridges-blue-color-pack](https://www.desertcart.com.au/products/447668803-erofa-hongdian-fountain-pen-set-ink-cartridges-blue-color-pack)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-26*