---
product_id: 300892784
title: "Art Ruling Pen for Applying Masking Fluid Line Work"
brand: "looneng"
price: "€ 29.61"
currency: EUR
in_stock: true
reviews_count: 5
category: "Looneng"
url: https://www.desertcart.hr/products/300892784-art-ruling-pen-for-applying-masking-fluid-line-work
store_origin: HR
region: Croatia
---

# Precision line control Water-resistant ink compatibility Adjustable screw for variable widths Art Ruling Pen for Applying Masking Fluid Line Work

**Brand:** looneng
**Price:** € 29.61
**Availability:** ✅ In Stock

## Summary

> 🎯 Nail every stroke with precision — your secret weapon for standout watercolor art!

## Quick Answers

- **What is this?** Art Ruling Pen for Applying Masking Fluid Line Work by looneng
- **How much does it cost?** € 29.61 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/300892784-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

- • **Durable & Lightweight:** Crafted from quality plastic, weighing just 15 grams for fatigue-free, long sessions.
- • **Customizable Line Widths:** Quickly adjust line thickness with a simple screw mechanism for ultimate versatility.
- • **Ambidextrous and Ergonomic:** Contoured grip and round body designed for comfortable use by all artists.
- • **Master Fine Detail with Ease:** Create ultra-fine lines perfect for grasses, branches, and intricate borders.
- • **Effortless Masking Fluid Application:** Ideal for masking fluid line work, making watercolor detailing seamless and precise.

## Overview

The LOONENG Art Ruling Pen is a lightweight, ambidextrous technical pen designed for artists seeking precision in ink, gouache, and watercolor. Featuring an adjustable screw for variable line widths up to 0.5mm, it excels at fine detail work and masking fluid application. Water-resistant and ergonomically contoured, this tool enhances control and creativity for professional and hobbyist painters alike.

## 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: Watercolor painting has just became easier - I love this tool! If you having difficulties using masking fluid this tool will help you immensely, don't hesitate buy it now. It is so easy to use and clean up afterwards! Seems to be made very well and I love the way you can change your line thickness with just a quick twist of a little screw on the side of it. Came in quickly and it is definitely worth the money that I spent!
Review: If you wants detail in water colour - Needed it

## Features

- Artist ruling pen ink drawing painting tool
- Used to create fine lines that are masked from the paint
- Great for grasses, small branches, rope, and other fine detail
- For drawing of lines and borders in ink, watercolour and gouache
- The variable line widths are set by a screw adjustment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075B44QJ7 |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #713,783 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #618 in Drawing Pens |
| Body Shape | Round |
| Brand | LOONENG |
| Brand Name | LOONENG |
| Closure Type | screw |
| Colour | green |
| Customer Reviews | 4.5 out of 5 stars 1,695 Reviews |
| Drill Point | Fine |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Ink Base | Water |
| Ink Colour | Black |
| Item Dimensions | 12.5 x 0.5 x 0.5 Centimeters |
| Item Weight | 15 Grams |
| Line Size | 0.5 millimeters |
| Manufacturer | china |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | DA17A012 |
| Model number | DA17A012 |
| Pattern | Letter Print |
| Recommended Uses For Product | Drawing |
| Special Features | Adjustable Line Width |
| Style Name | Chisel |
| Subject Character | Art |
| Theme | Artistic Drawing Instruments |
| UPC | 743270886737 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Technical Pen |
| Writing instrument form | Technical Pen |

## Product Details

- **Brand:** LOONENG
- **Ink Colour:** Black
- **Number of Items:** 1
- **Point Type:** Fine
- **Recommended Uses For Product:** Drawing

## Images

![Art Ruling Pen for Applying Masking Fluid Line Work - Image 1](https://m.media-amazon.com/images/I/51CZlwtZP4L.jpg)
![Art Ruling Pen for Applying Masking Fluid Line Work - Image 2](https://m.media-amazon.com/images/I/71FmEO75zcL.jpg)
![Art Ruling Pen for Applying Masking Fluid Line Work - Image 3](https://m.media-amazon.com/images/I/71+zKJJEEkL.jpg)
![Art Ruling Pen for Applying Masking Fluid Line Work - Image 4](https://m.media-amazon.com/images/I/81NNBlmt3rL.jpg)
![Art Ruling Pen for Applying Masking Fluid Line Work - Image 5](https://m.media-amazon.com/images/I/71753Epyz9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Watercolor painting has just became easier
*by C***R on 28 April 2026*

I love this tool! If you having difficulties using masking fluid this tool will help you immensely, don't hesitate buy it now. It is so easy to use and clean up afterwards! Seems to be made very well and I love the way you can change your line thickness with just a quick twist of a little screw on the side of it. Came in quickly and it is definitely worth the money that I spent!

### ⭐⭐⭐⭐⭐ If you wants detail in water colour
*by M***M on 2 November 2023*

Needed it

### ⭐⭐⭐⭐⭐ You NEED this!
*by S***A on 3 November 2020*

Oh wow! That’s what I have to say about this magnificent little tool! So much easier to place masking fluid where it needs to go.. where has this tool been all my life? No learning curve.. just dip and use! Works so much better than a brush, and it’s so easy to clean. Love 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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**Shop now:** [https://www.desertcart.hr/products/300892784-art-ruling-pen-for-applying-masking-fluid-line-work](https://www.desertcart.hr/products/300892784-art-ruling-pen-for-applying-masking-fluid-line-work)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-04*