---
product_id: 730978165
title: "S.T. DuPont Ballpoint Pen, Oil-Based Refill, Medium, Black 40851"
brand: "stratton essential supply"
price: "€ 14.77"
currency: EUR
in_stock: true
reviews_count: 8
category: "Stratton Essential Supply"
url: https://www.desertcart.hr/products/730978165-s-t-dupont-ballpoint-pen-oil-based-refill-medium-black
store_origin: HR
region: Croatia
---

# Rich black ink Lightweight 10g design Medium point precision S.T. DuPont Ballpoint Pen, Oil-Based Refill, Medium, Black 40851

**Brand:** stratton essential supply
**Price:** € 14.77
**Availability:** ✅ In Stock

## Summary

> 🖊️ Elevate your writing game with every stroke!

## Quick Answers

- **What is this?** S.T. DuPont Ballpoint Pen, Oil-Based Refill, Medium, Black 40851 by stratton essential supply
- **How much does it cost?** € 14.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/730978165-s-t-dupont-ballpoint-pen-oil-based-refill-medium-black)

## Best For

- stratton essential supply enthusiasts

## Why This Product

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

## Key Features

- • **Deep Black Ink:** Make your words stand out with bold, fade-resistant black ink that commands attention.
- • **Ultra-Lightweight:** At just 10 grams, enjoy smooth writing without hand fatigue during long sessions.
- • **Sleek Compatibility:** Seamlessly fits S.T. Dupont pens for a premium writing upgrade.
- • **Precision Engineering:** Crafted to exacting standards ensuring reliable ink flow and professional performance.
- • **Effortless Medium Point:** Experience flawless, consistent lines with the perfectly balanced medium tip.

## Overview

The S.T. Dupont Permanent Ballpoint Pen Refill (Model D-40851) features a medium point tip with rich black ink, designed for smooth, precise writing. Lightweight at 10 grams and measuring 16 x 3.4 x 2.5 cm, this refill is an ideal upgrade for your premium S.T. Dupont pen, combining durability and elegance for professional use.

## Description

S.T. Dupont Ballpoint Pen Refill, Medium Box size and weight are dummy numbers

Review: 純正品なので少し高いですがとても滑らかに書けて良い品だと思います♪
Review: 本体は古いですが、替えがまだあるのはありがたいです

## Features

- S.T. Dupont Permanent Ballpoint Pen Refill, Medium, Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004Y3R2RS |
| Amazon Bestseller | #24,141 in Office Products ( See Top 100 in Office Products ) #727 in Ink Pen Refills |
| Brand Name | Stratton Essential Supply |
| Customer Reviews | 4.5 4.5 out of 5 stars (57) |
| Global Trade Identification Number | 03597390022523 |
| Ink Color | black |
| Item Dimensions | 16 x 3.4 x 2.5 cm |
| Manufacturer | エス・テー・デュポン(S.T.Dupont) |
| Manufacturer Part Number | D-40851 |
| Model Number | D-40851 |
| Number of Pieces | 1 |
| Point Type | Medium |
| Style | 40851 |
| UPC | 597390022526 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Stratton Essential Supply
- **Item dimensions L x W x H:** 16 x 3.4 x 2.5 cm
- **Number of Pieces:** 1
- **Point Type:** Medium
- **Style:** 40851

## Images

![S.T. DuPont Ballpoint Pen, Oil-Based Refill, Medium, Black 40851 - Image 1](https://m.media-amazon.com/images/I/61o8I70qk5L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***ー on July 19, 2025*

純正品なので少し高いですがとても滑らかに書けて良い品だと思います♪

### ⭐⭐⭐⭐⭐ Review
*by ぺ***こ on August 22, 2025*

本体は古いですが、替えがまだあるのはありがたいです

### ⭐⭐⭐⭐ Review
*by ら***む on February 8, 2026*

本体に入れたら若干短く感じた。 古いペンだから（50年位前）使用が変わったんでしょうか？長さが後1ミリ程足りない気がします。 もしかして長さが複数あるのでしょうか？ 書き心地は滑らかで途中抜けなく使用出来てます。

## Frequently Bought Together

- S Te Dupont 40851 Ballpoint Pen, Oil-Based, Refill, Medium, Black
- S.T. Dupont Medium Ballpoint Blue Refill 040850
- S.T Dupont D-40841 Medium Roller Refills - Black

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**Shop now:** [https://www.desertcart.hr/products/730978165-s-t-dupont-ballpoint-pen-oil-based-refill-medium-black](https://www.desertcart.hr/products/730978165-s-t-dupont-ballpoint-pen-oil-based-refill-medium-black)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-20*