---
product_id: 276502429
title: "Looneng Art Ruling Pen for Applying Masking Fluid Line Work"
brand: "looneng"
price: "£15.98"
currency: GBP
in_stock: true
reviews_count: 5
category: "Looneng"
url: https://www.desertcart.co.uk/products/276502429-looneng-art-ruling-pen-for-applying-masking-fluid-line-work
store_origin: GB
region: United Kingdom
---

# Screw mechanism for fine control Adjustable line width 0.3mm precision Durable stainless steel build Looneng Art Ruling Pen for Applying Masking Fluid Line Work

**Brand:** looneng
**Price:** £15.98
**Availability:** ✅ In Stock

## Summary

> 🎨 Master every line, own every detail.

## Quick Answers

- **What is this?** Looneng Art Ruling Pen for Applying Masking Fluid Line Work by looneng
- **How much does it cost?** £15.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/276502429-looneng-art-ruling-pen-for-applying-masking-fluid-line-work)

## Best For

- looneng enthusiasts

## Why This Product

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

## Key Features

- • **Rustproof Durability:** Crafted from elastic stainless steel and thick plastic for a resilient tool that withstands heavy use and cleans effortlessly.
- • **Masking Fluid Mastery:** Create intricate masked areas that peel off cleanly, unlocking new watercolor and mixed media techniques with ease.
- • **Ergonomic & Lightweight:** Slim, ambidextrous design with a smooth grip ensures fatigue-free use during long creative sessions.
- • **Pinpoint Precision Control:** Easily dial in your perfect line thickness with the smooth screw adjuster for flawless fine lines every time.
- • **Versatile Fluid Compatibility:** Works seamlessly with inks, gouache, masking fluids, and thin paints—ideal for calligraphy, cartography, and technical art.

## Overview

The Looneng Art Ruling Pen is a precision drawing tool featuring an adjustable screw mechanism to control line width down to 0.3mm. Made from durable stainless steel with a slim, ergonomic design, it excels in applying inks, gouache, and masking fluids for fine line work in calligraphy, cartography, and technical drawings. Its rust-resistant construction and compatibility with various fluid mediums make it a must-have for professional artists and managers who demand accuracy and versatility in their creative toolkit.

## Description

Ruling Pen is cross-hinged for variable line width. The line width is set by the screw adjustment. Lines can be produced using ink or gouache paint.

Review: Super. I am using regularly. It is very much useful.
Review: This ruling pen works like a charm! I have been using it with pebeo drawing gum (see pic). Fine lines and dots masked are fantastic. See pic of leaves and star dots/comets. It’s easy to spread for larger areas, too. When dry, it just peels off cleanly from the metal tip. I recommend the combo of this ruling pen with blue pebeo drawing gum (masking fluid) for watercolor. I have a white masking fluid pen (generic brand) that pushes out a lot air, resulting in bubbles that ruin fine lines. I gave up on the use of masking fluid for about 2 years, but this combo is going to be such fun! Be aware - The barrel is very slim. (See pic). If you have any issues with finger/grip strength or arthritis in your hands, this particular ruling pen may not work for you.

## Features

- 【ART RULING PEN DRAWING PAINTING TOOL】Ruling pens are traditionally designed instruments that lay down lines in ink, paint, or any fluid medium with the viscosity to flow. Excellent for creating precise lines and drawing with ink, drawing and masking fluids, or even thin paints.
- 【SELECT THE WIDTH WITH THE SCREW ADJUSTER】The two parts of the tip hold ink or with other drawing fluids between them by capillary action. By adjusting the screw on the side, you can carefully and very accurately adjust the width of the line you're creating. It is used to draw lines of precise thickness with paint or ink.
- 【INSTRUCTIONS FOR USE OF RULING PEN】 Adjust to your chosen line width, dip the ruling pen in ink or masking fluid and draw onto the paper. It is possible to create very fine lines. If you use masking fluid, let it dry and paint your picture. Once your painting is dry, remove the masking fluid to reveal the unpainted areas.
- 【USED TO CREATE ACCURATE FINE LINES】Ruling pen is designed for fine line drawing, cartography, calligraphy, and technical drawings. It can also make fine lines and borders in Indian ink, gouache, drawing ink, watercolors, and masking fluids. In addition, it is used to draw lines of precise thickness with paint or ink.
- 【DURABLE STAINLESS STEEL CONSTRUCTION】The ruling pens are crafted in stainless steel with elastic properties, excellent strength, and durability. They do not rust, are easy to clean and provide lightness, flexibility, and accuracy in strokes. In addition, thick plastic handles and durable stainless steel nibs can withstand heavy use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075B44QJ7 |
| Additional Features | Adjustable Line Width |
| Age Range Description | Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #50,505 in Office Products ( See Top 100 in Office Products ) #630 in Artists Drawing Aids |
| Body Shape | Round |
| Brand Name | LOONENG |
| Closure Type | screw |
| Color | Green |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,137) |
| Drill Point | Fine |
| Grip Type | Smooth |
| Hand Orientation | Ambidextrous |
| Ink Base | Water |
| Ink Color | Multicolor |
| Item Dimensions | 12.5 x 0.5 x 0.5 centimeters |
| Item Weight | 15 Grams |
| Line Size | 0.3mm |
| Manufacturer | LOONENG |
| Material Type | Stainless Steel |
| Model Name | DA17A012 |
| Model Number | DA17A012 |
| Pattern | Solid |
| Recommended Uses For Product | Drawing, Calligraphy, Cartography, Technical Drawings |
| Style | Chisel |
| Theme | Artistic Drawing Instruments |
| UPC | 743270886737 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Technical Pen |

## Product Details

- **Age range (description):** Adult
- **Brand:** LOONENG
- **Colour:** Green
- **Ink colour:** Multicolor
- **Writing instrument form:** Technical Pen

## Images

![Looneng Art Ruling Pen for Applying Masking Fluid Line Work - Image 1](https://m.media-amazon.com/images/I/51CZlwtZP4L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by M***V on 24 January 2025*

Super. I am using regularly. It is very much useful.

### ⭐⭐⭐⭐⭐ Review
*by S***9 on 23 August 2024*

This ruling pen works like a charm! I have been using it with pebeo drawing gum (see pic). Fine lines and dots masked are fantastic. See pic of leaves and star dots/comets. It’s easy to spread for larger areas, too. When dry, it just peels off cleanly from the metal tip. I recommend the combo of this ruling pen with blue pebeo drawing gum (masking fluid) for watercolor. I have a white masking fluid pen (generic brand) that pushes out a lot air, resulting in bubbles that ruin fine lines. I gave up on the use of masking fluid for about 2 years, but this combo is going to be such fun! Be aware - The barrel is very slim. (See pic). If you have any issues with finger/grip strength or arthritis in your hands, this particular ruling pen may not work for you.

### ⭐⭐⭐⭐⭐ Review
*by M***M on 2 November 2023*

Needed it

## Frequently Bought Together

- LOONENG Ruling Pen for Masking Fluid, Perfect Fine Line Drawing, Technical Cartography and Calligraphy, Suitable Use with Drawing Ink, Indian Ink Gouache
- Pebeo Easy Peel Liquid Latex Masking Fluid - Drawing Gum - Dries Quickly - For Ink - Watercolor - Gouache Painting & Illustration - Fine Arts & Crafts Supplies - 45ml Bottle
- Creative Mark Masking Fluid Paint Brushes (Set of 10) - Watercolor Brushes Contains Synthetic Hair w/Short Wood Handles

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-25*