---
product_id: 1482172
title: "TWSBI Diamond 580 Fountain Pen nib B"
brand: "twsbi"
price: "€ 1.11"
currency: EUR
in_stock: false
url: https://www.desertcart.gr/products/1482172-twsbi-diamond-580-fountain-pen-nib-b
store_origin: GR
region: Greece
---

# Smoother cap threading for effortless use 30% increased ink capacity vs previous model Broad stainless steel nib for smooth writing TWSBI Diamond 580 Fountain Pen nib B

**Brand:** twsbi
**Price:** € 1.11
**Availability:** ❌ Out of Stock

## Summary

> 🖋️ Write Boldly, Impress Instantly

## Quick Answers

- **What is this?** TWSBI Diamond 580 Fountain Pen nib B by twsbi
- **How much does it cost?** € 1.11 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1482172-twsbi-diamond-580-fountain-pen-nib-b)

## 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

- • **Ink That Keeps Up:** 30% larger ink reservoir means fewer refills and more uninterrupted creativity.
- • **Crystal Clear Design:** Demonstrator barrel lets you watch your ink level in real-time—because style meets function.
- • **Precision Engineering:** Upgraded cap threading and piston mechanism ensure durability and a premium feel every time.
- • **Effortless Writing Flow:** Broad nib delivers a buttery-smooth glide for professional-grade scripts.
- • **Ambidextrous Comfort Grip:** Ergonomically designed for all hand orientations, perfect for lefties and righties alike.

## Overview

The TWSBI Diamond 580 Fountain Pen with a broad stainless steel nib combines a sleek demonstrator design with a 30% larger ink capacity and enhanced grip. Its smooth piston filling mechanism and upgraded cap threading offer a premium writing experience tailored for professionals who demand style, reliability, and performance in every stroke.

## Description

Crystal clear finish with the standard Twsbi piston ink-filling mechanism. Available in EF, F, M, and B stainless steel nibs.

## Features

- Enhanced Grip & Barrel: Upgraded from 540
- Increased Ink Capacity: 30% More Than 530
- Smoother Cap Thread Turning
- Demonstrates Our Commitment to Continuous Improvement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BT1AG8A |
| Additional Features | Detachable |
| Age Range Description | Adult |
| Best Sellers Rank | #315,286 in Office Products ( See Top 100 in Office Products ) #1,325 in Fountain Pens |
| Body Shape | Round |
| Brand Name | TWSBI |
| Closure Type | Snap |
| Color | Demonstrator, Clear |
| Customer Reviews | 4.2 4.2 out of 5 stars (52) |
| Drill Point | Broad |
| Global Trade Identification Number | 04711467443144 |
| Grip Type | smooth |
| Hand Orientation | Ambidextrous |
| Hardness | F |
| Included Components | Basic Disassembly Tools |
| Ink Base | Water |
| Ink Color | Silver |
| Item Dimensions | 7.5 x 2.4 x 1.6 inches |
| Item Weight | 50 g |
| Line Size | 0.3mm, 0.5mm, 1.1mm |
| Manufacturer | TWSBI |
| Material Type | Stainless Steel |
| Model Name | TWSBI Diamond 580 |
| Model Number | M7443140 |
| Recommended Uses For Product | Writing |
| Style | B |
| Theme | Rose Gold |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Fountain Pen |
| Writing Technique | fountain pen |

## Product Details

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

## Images

![TWSBI Diamond 580 Fountain Pen nib B - Image 1](https://m.media-amazon.com/images/I/51uLmeKB4tL.jpg)

## Questions & Answers

**Q: I just bought your TWSBI 700 Medium tip pen, and I'm interested in a bolder tip for calligraphy... How bold is this tip compared to the Medium?**
A: I don't think you would want to use the broad nib for calligraphy.  You want a pen with a stub or italic nib and I would recommend at least 1.9mm.  TWSBI has a 1.1mm stub, which is ok for calligraphy.  I would consider Pilot Parallel or Kaweco's calligraphy set, as you can try several nib sizes without breaking the bank, or a Speedball dip pen with a variety of nibs which can be bought cheaply.

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**Shop now:** [https://www.desertcart.gr/products/1482172-twsbi-diamond-580-fountain-pen-nib-b](https://www.desertcart.gr/products/1482172-twsbi-diamond-580-fountain-pen-nib-b)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-11-01*