---
product_id: 300827546
title: "4.37'' Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, German Ink Refill Pack of Replaceable Pen Refills Medium Point(6 Pack) (Blue)"
brand: "aiyiben"
price: "€ 17.12"
currency: EUR
in_stock: true
reviews_count: 8
category: "Aiyiben"
url: https://www.desertcart.sk/products/300827546-4-37-rollerball-pen-refills-roller-ball-fine-point-0
store_origin: SK
region: Slovakia
---

# 4.37'' precision length Smooth blue German gel ink 0.5mm fine rollerball tip 4.37'' Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, German Ink Refill Pack of Replaceable Pen Refills Medium Point(6 Pack) (Blue)

**Brand:** aiyiben
**Price:** € 17.12
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your pen game—never run dry on style or substance!

## Quick Answers

- **What is this?** 4.37'' Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, German Ink Refill Pack of Replaceable Pen Refills Medium Point(6 Pack) (Blue) by aiyiben
- **How much does it cost?** € 17.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/300827546-4-37-rollerball-pen-refills-roller-ball-fine-point-0)

## Best For

- aiyiben enthusiasts

## Why This Product

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

## Key Features

- • **Value Pack:** 6 refills to keep you writing and sharing without pause
- • **Long-Lasting Flow:** Consistent ink flow with quick-drying, no-ooze formula
- • **Sleek Metal Build:** Durable, lightweight metal casing for a premium feel
- • **Precision Perfected:** 0.5mm fine point for crisp, professional writing
- • **Universal Compatibility:** Fits Parker & Waterman rollerball pens—extend your favorite pen’s life

## Overview

This 6-pack of 4.37-inch metal rollerball pen refills features a precise 0.5mm fine point with smooth, quick-drying German blue gel ink. Compatible with Parker and Waterman rollerball pens, these refills offer consistent ink flow without oozing, extending the life of your favorite premium pens. Ideal for professionals seeking reliable, sleek writing performance in office, business, or school settings.

## Description

Good quality metal refills: The high-quality ink provides consistent writing smoothness, the ink dries quickly with a constant ink flow, and does not ooze; it is suitable for many rollerball pen refills. Applications: Refills are suitable for offices, businesses, schools, homes and hotels; lightweight and portable, easy to carry. Expansion of expensive pens you like: When your expensive pen ink is used up and does not need to be thrown away, a good choice. The package contains 6 refills, enough for you to use. specification: Quantity: 6 packs Color: black ink >Material: Metal body Midpoint: 0.5 mm Length: 4.37 inches / 11.1 cm Diameter: 0.236 inches / 0.6 cmPackage Included: 6 x rollerball pen refill

Review: Great replacement refill - Great item, works well
Review: Rollerball refills - Thought I'd take a chance on these as I'd been struggling to find this type of refill locally. I feel that they're good value for money for what you get and the quality isn't too bad. The tips are a little scratchy when you're writing, but that was also the case with the official refill I originally had in my pen anyway. The ink is a nice shade of blue and overall I'm quite happy with them.

## Features

- Very toxic to aquatic life with long lasting effects.
- Very toxic to aquatic life.
- Size: The length of the refill is about 4.37 inches / 11.1 cm, The diameter of the ink resevoir is 0.24 inch / 0.6 cm，the midpoint of 0.5 mm German gel ink. Fits Parker Compatible Rollerball pens and Waterman Compatible Rollerball Pen. Before buying, please double check whether the specifications are suitable for your pen.
- Quantity:6 rollerball refits, enough for you to share with your friends.【Please note that this product is not suitable for CROSS and Mont Blanc pens】
- Quality: metal material, light and smooth; Ink drying quickly, ink flow consistent, will not ooze.
- Suitable for site: metal rollerball refits are suitable for office, business, school and home.
- Scope of application: Many replaceable rollerball pens are compatible and can extend the life of your favorite expensive pen.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | AIYIBEN |
| Brand | AIYIBEN |
| Model Number | Ink Pen Refills 437 |
| Product Dimensions | 11.1 x 0.61 x 0.61 cm; 34 g |
| Colour | blue |
| Material Type | Metal |
| Number of Items | 1 |
| Size | 1 count (Pack of 1) |
| Point Type | Medium |
| Ink Colour | Blue |
| Manufacturer Part Number | Ink Pen Refills 437 |
| Item Weight | 34 g |

## Product Details

- **Brand:** AIYIBEN
- **Style:** Gel
- **Item dimensions L x W x H:** 11.1 x 0.6 x 0.6 centimetres
- **Item weight:** 34 Grams
- **Number of pieces:** 6

## Images

![4.37'' Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, German Ink Refill Pack of Replaceable Pen Refills Medium Point(6 Pack) (Blue) - Image 1](https://m.media-amazon.com/images/I/51LRJTcpXQL.jpg)

## Questions & Answers

**Q: Does this fit Pierre Cardin 666?**
A: Not sure. They seem to fit a wide range of my pens so maybe.

**Q: Does this fit Cross 8523?**
A: Sorry to get back to you so late but looking at the 8523 the refill appears to be quite long around 3-3.5 “ the refill that I purchased was around 2” max

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great replacement refill
*by J***D on 15 November 2025*

Great item, works well

### ⭐⭐⭐⭐ Rollerball refills
*by L***R on 29 October 2022*

Thought I'd take a chance on these as I'd been struggling to find this type of refill locally. I feel that they're good value for money for what you get and the quality isn't too bad. The tips are a little scratchy when you're writing, but that was also the case with the official refill I originally had in my pen anyway. The ink is a nice shade of blue and overall I'm quite happy with them.

### ⭐⭐⭐⭐⭐ perfect
*by R***R on 22 August 2025*

perfect fit great buy

## Frequently Bought Together

- 4.37 inch Rollerball Pen Refills, Roller Ball Fine Point 0.5mm, Blue Ink Refill Pack of Replaceable Pen Refills Medium Point (6 Pack)
- Pemmeed Rollerball Pen Refills Smooth Writing German Gel Ink,Parker Waterman Compatible Pen Refills Metal Standard Size Fine Point Black Ink Pack of 10 (Black)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-25*