---
product_id: 48686327
title: "8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible)"
brand: "lamy"
price: "€ 24.81"
currency: EUR
in_stock: true
reviews_count: 13
category: "Lamy"
url: https://www.desertcart.de/products/48686327-8-x-schmidt-635m-mini-ball-pen-refill-black-lamy
store_origin: DE
region: Germany
---

# Rich black ink flow Medium nib for smooth writing 8-pack precision refills 8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible)

**Brand:** lamy
**Price:** € 24.81
**Availability:** ✅ In Stock

## Summary

> 🖊️ Upgrade your pen game — never run out of ink in style!

## Quick Answers

- **What is this?** 8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible) by lamy
- **How much does it cost?** € 24.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/48686327-8-x-schmidt-635m-mini-ball-pen-refill-black-lamy)

## Best For

- lamy enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Ink:** Each refill delivers consistent, smooth writing that won’t quit
- • **Value-Packed Set:** 8 refills in one pack to keep your pen ready for every important note
- • **Compact & Convenient:** Mini size (2-3/4") with snap closure for easy replacement on the go
- • **Effortless Compatibility:** Fits Lamy M21, Cross 8518-4 & select Swarovski pens seamlessly
- • **Professional Grade Quality:** Trusted Schmidt engineering ensures flawless ink flow and durability

## Overview

The Schmidt 635M Mini Ball Pen Refill 8-pack offers medium nib black ink refills compatible with Lamy M21, Cross 8518-4, and select Swarovski pens. Each refill measures approximately 2-3/4 inches with a snap closure cap, delivering smooth, reliable writing. Trusted by professionals, this value pack ensures you stay prepared with long-lasting, high-quality ink flow.

## Description

Schmidt prints the distributors name "PRIVATE RESERVE" on the outside barrel of some of the refills we ship. Compatible with LAMY M21, Cross 8518-4, and some Swarowski Pens (please check to see if your pen will use this refill).

Review: Good value - Will fit other pens but ideal for sworkovski pen as stated
Review: Schmidt mini Pen refills. - Great. They fitted and work well as said on the description of the product. Great Flow, deffinately value for many and each refill last a long time.

## Features

- Schmidt 635M MINE MEDIUM Ballpoint Ink Refill w/ Plastic Cap 8-Pack
- Ink Color: BLACK (also available in BLUE ~ RED & GREEN)
- The refill measures 2-11/16" in length (not including the plastic CAP)
- Measurement with CAP: 2-3/4" (depending on how far u insert in cap)
- Writing Nib: MEDIUM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008B2EQEU |
| Best Sellers Rank | 12,588 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 114 in Pen Refills |
| Brand | Lamy |
| Closure | Snap |
| Colour | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (759) |
| Date First Available | 13 Jun. 2012 |
| Ink Colour | Black |
| Item Weight | 9.07 g |
| Manufacturer | Schmidt |
| Manufacturer Part Number | LMY_8518-4 |
| Material Type | Plastic, Stainless Steel |
| Model Number | LYSB008B2EQEU-ELECTRNCS |
| Number of Items | 1 |
| Point Type | Medium |
| Product Dimensions | 10.16 x 5.08 x 0.25 cm; 9.07 g |
| Size | 8 Count (Pack of 1) |

## Product Details

- **Brand:** Lamy
- **Item dimensions L x W x H:** 10.2 x 5.1 x 0.3 centimetres
- **Item weight:** 0.02 Pounds
- **Number of pieces:** 8
- **Style:** Ballpoint

## Images

![8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible) - Image 1](https://m.media-amazon.com/images/I/71fxRVQoz7L.jpg)
![8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible) - Image 2](https://m.media-amazon.com/images/I/81CU8N6D1LL.jpg)
![8 x Schmidt 635M Mini Ball Pen Refill - Black - (Lamy M21 and Cross 8518-4 Compatible) - Image 3](https://m.media-amazon.com/images/I/91ux0iAln9L.jpg)

## Questions & Answers

**Q: Does it fit Swarovski Stardust pens?**
A: I don't know about the Stardust pens but I know it fits the Swarovski Lady Crystalline pens.

**Q: If you have tried this refill with a livescribe pen, does it fit/mod? (livescribe refills are about 2.25 inches long x ~2.5mm wide)**
A: Tested: fits nicely and the Livescribe 3 pen also recognizes the ink when writing.

**Q: Is there a fine point version?**
A: The refills I received, both blue and black, were medium point.

**Q: Is this refill as pictured with just the silver tip only or is the product received the silver and black tip refill?**
A: Normally the tip color will correspond to the ink color.  In this case the tips should be black.  Jim

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value
*by J***J on 7 June 2025*

Will fit other pens but ideal for sworkovski pen as stated

### ⭐⭐⭐⭐⭐ Schmidt mini Pen refills.
*by S***E on 1 December 2024*

Great. They fitted and work well as said on the description of the product. Great Flow, deffinately value for many and each refill last a long time.

### ⭐⭐⭐⭐ Value for money
*by I***. on 4 April 2016*

Was not supplied with the plastic refill cap as depicted in advert and under description of item which was supposed to be a BONUS, Not a big problem as I had a couple of spares. Excellent value for money compared to other suppliers. Would use again. Would have given 5 stars had the Refill Cap been included.

## Frequently Bought Together

- 8 X Schmidt 635M Mini Ball Pen D1 size Refills – BLACK Ink and one removable black end cap
- Schmidt 635 Mini D1 Ballpoint Refill Medium, 4 Pack, Blue (SC58150)
- Zebra 0.5mm Royal Blue Gel Ink Refill (RJSB5- RBL), for Zebra Multi Function Pen Shabo X Ballpoint Pen, × 5 Pack/total 5 pcs (Japan Import) [Komainu-Dou Original Package]

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-26*