---
product_id: 255488999
title: "FLEX NIB Fountain Pen, Piston Fill, Clear Demo"
brand: "noodler's"
price: "S/.250"
currency: PEN
in_stock: true
reviews_count: 5
category: "Noodler's"
url: https://www.desertcart.pe/products/255488999-flex-nib-fountain-pen-piston-fill-clear-demo
store_origin: PE
region: Peru
---

# Auto-vent flex nib 0.3-1.5mm Clear demonstrator body Piston fill ink system FLEX NIB Fountain Pen, Piston Fill, Clear Demo

**Brand:** noodler's
**Price:** S/.250
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Boldly, Flex Freely — Own the Pen That Speaks Your Style

## Quick Answers

- **What is this?** FLEX NIB Fountain Pen, Piston Fill, Clear Demo by noodler's
- **How much does it cost?** S/.250 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/255488999-flex-nib-fountain-pen-piston-fill-clear-demo)

## Best For

- noodler's enthusiasts

## Why This Product

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

## Key Features

- • **Affordable Flexibility:** Experience premium flex nib performance without the premium price—join the exclusive club of pen aficionados who know value.
- • **Dynamic Line Variation:** Auto-vent flex nib adapts from delicate hairlines to bold 1.5mm strokes with subtle pressure—perfect for expressive, standout writing.
- • **Effortless Ink Mastery:** Piston filling mechanism ensures smooth, mess-free bottled ink refills—because your creativity deserves uninterrupted flow.
- • **Medium Point Precision:** Balanced 0.3mm line width for professional, legible handwriting that commands attention in meetings and notes.
- • **Transparent Design, Transparent Intent:** Clear demonstrator body lets you watch your ink levels in real-time—never run dry mid-idea again.

## Overview

The Noodler's FLEX NIB Fountain Pen features a piston filling system paired with a unique auto-vent flex nib that delivers line widths from 0.3mm to 1.5mm. Its clear demonstrator body offers full visibility of ink levels, while the medium point ensures professional, versatile writing. Designed for ink enthusiasts seeking expressive control and affordability, this pen is a standout tool for creative professionals and shorthand experts alike.

## Description

The scarce but popular Noodler's flex nib fountain pens enter a new design available in several new marbled colors. Each pen is uses a piston-filling mechanism which accepts bottled ink only (may we suggest Noodler's Ink?) and is fitted with a special auto-vent flex nib that can go from a hairline to 1.5mm stroke on paper using slight hand pressure to spread the tines of the nib. Definitely a great value considering the low cost to own a flex nib fountain pen.

Review: Took an age to arrive. Gently screwed the lid together. Popped it in my coat pocket and the screw thread snapped immediately. If the seller can send me a replacement lid, I'll give more stars for the pen section, but currently not really fit for purpose. Also it smells like someone has used it as a thermometer. (Not mouth or armpit)
Review: This pen is suitable for pitman's Shorthand writing.

## Features

- Piston Fill Flex Nib Clear Demonstrator Medium Point Fountain Pen
- Fountain Pen Medium Point

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005KJMM5C |
| Best Sellers Rank | #72,248 in Office Products ( See Top 100 in Office Products ) #731 in Fountain Pens |
| Brand | NOODLER'S |
| Closure | Screw Off Cap |
| Color | Clear |
| Customer Reviews | 3.5 3.5 out of 5 stars (581) |
| Date First Available | 6 September 2014 |
| Grip Type | Grip Zone |
| Ink Color | Transparent |
| Item Weight | 9.07 g |
| Line Size | 0.3mm |
| Manufacturer | Noodler's Ink |
| Manufacturer Part Number | 17000 |
| Material Type | Metal Alloy Steel Nylon |
| Model number | 17000 |
| Number of Items | 1 |
| Pencil Lead Degree (Hardness) | B |
| Point Type | Medium |
| Product Dimensions | 12.8 x 1.6 x 1.6 cm; 9.07 g |
| Size | 1 count (Pack of 1) |

## Product Details

- **Age range (description):** Adult
- **Brand:** NOODLER'S
- **Colour:** Clear
- **Ink colour:** Transparent
- **Writing instrument form:** Fountain Pen

## Images

![FLEX NIB Fountain Pen, Piston Fill, Clear Demo - Image 1](https://m.media-amazon.com/images/I/61hhKnh92AL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this fit a standard #6 nib?**
A: no the nib creaper uses a  #2 the Ahab and Konrad are #6 nibs

**Q: Can I put white ink in this pen? If so what kind is best?**
A: Have you tried D'Artrementis white ink? It is made for fountain pens.

**Q: Can we see a writing sample?**
A: Better check youtube. Personally I was hoping for little more flex.

**Q: I'm a bit confused. Is this  listing for a clear demo pen or a blue lapis pen? The title and the description don't match.**
A: It's the clear demonstrator of title and photo.Description is probably just copy-pasted from a similar listing. I don't think I even read it before ordering - Amazon have been successfully deemphasizing it (at least on mobile).

## Customer Reviews

### ⭐ Review
*by D***D on 27 January 2026*

Took an age to arrive. Gently screwed the lid together. Popped it in my coat pocket and the screw thread snapped immediately. If the seller can send me a replacement lid, I'll give more stars for the pen section, but currently not really fit for purpose. Also it smells like someone has used it as a thermometer. (Not mouth or armpit)

### ⭐⭐⭐⭐⭐ Review
*by D***V on 18 May 2018*

This pen is suitable for pitman's Shorthand writing.

### ⭐⭐⭐⭐⭐ Review
*by J***E on 4 April 2022*

Buena fluidez, mucha flexibilidad en la punta, acabados aceptables, la pluma no es bonita para lucirla, pero si lo que se puede lograr con ella. La escritura es mejor que con muchas plumas costosas de marca premium, vale la pena para por pocos pesos para quien disfruta el arte de la escritura.

## Frequently Bought Together

- Noodler's Ink Piston Fill Flex Nib Clear Demonstrator Medium Point Fountain Pen - ND-17000
- Noodler's Black Waterproof Fountain Pen Ink - Bulletproof,3 ounce
- Noodler's Ink Konrad Flex Clear Demo Fountain Pen - ND-14005

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-20*