---
product_id: 633395772
title: "LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache"
brand: "looneng"
price: "R292"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Looneng"
url: https://www.desertcart.co.za/products/633395772-looneng-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen
store_origin: ZA
region: South Africa
---

# Precision adjustable line width Flawless fluid flow & easy clean Stainless steel durability LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache

**Brand:** looneng
**Price:** R292
**Availability:** ✅ In Stock

## Summary

> 🎨 Master every line, mask every detail — precision meets durability in your creative arsenal!

## Quick Answers

- **What is this?** LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache by looneng
- **How much does it cost?** R292 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/633395772-looneng-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen)

## 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

- • **Built to Last:** Rust-proof stainless steel nib and sturdy plastic handle withstand heavy use without fatigue.
- • **Effortless Maintenance:** Quick, residue-free cleaning keeps your pen ready for the next masterpiece—no brush needed.
- • **Flawless Fluid Control:** Holds ample masking fluid or ink, enabling multiple fine lines before re-dipping—speed up your workflow.
- • **Versatile Artistic Tool:** Perfect for calligraphy, cartography, fine line drawing, and masking fluid applications with various inks and paints.
- • **Engineered for Precision:** Adjust line width effortlessly with the screw wheel for ultra-fine to bold strokes.

## Overview

The LOONENG Ruling Pen is a premium stainless steel drafting tool designed for professionals and enthusiasts in calligraphy, cartography, and fine line art. Featuring an adjustable screw for precise line width control, it excels in applying masking fluid and inks like Indian ink and gouache. Lightweight yet durable, it offers smooth fluid flow and easy cleaning, making it an indispensable tool for detailed, high-quality artwork.

## Description

desertcart.com : LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache : Arts, Crafts & Sewing

Review: Works perfectly with both masking fluid and paint, cleans easily - I used this both with masking fluid to mask some light reflections on cold-press watercolor paper that needed to be regular lines. Just dipped it in bottle, keeping masking fluid well below hinge piece and the screw wheel. Practiced a second to get the angle right for a nice line on a scrap piece. Once you get the angle, it flows smoothly, and the weight is nice and feels balanced in your hand. Lines are clean and smooth, and the tool holds way more fluid than I had expected. No trouble with drips, and the wheel is great for adjusting the width of line as well as for clean up. For clean up, I used just a barely damp paper towel (damp from wiping my brush after painting and dip rinsing in clear water), and you couldn't even tell it had been used. Tried it out with some watercolor paint from a palette well to smooth a line in places, and it worked like a dream. Again, just dipped, gently and quickly stroked outside once against clean edge of palette well. No drips, no need to put in with a brush, at least for me. Clean up still fast and easy no residue. Excellent product.
Review: It works better than anything I've used to apply resist for watercolor! - What I love: 1. It goes on smoothly 2. It adjusts between very fine lines for hair to thicker lines. 3. It cleans up completely and saves fine brushes. 4. The reservoir makes it possible to draw several fine lines before needing to dip again. This makes it quick so you can put the cap on in less time, therefore preventing the resist drying out. 5. I have only used this with Pebeo resist. I can't say it works as well using other products, because I haven't tied it with any other brands of resist. I am one happy girl! This reduced tons of frustration!

## Features

- DURABLE STAINLESS STEEL CONSTRUCTION: The ruling pens are crafted in stainless steel with elastic properties, a material that has excellent strength and durability and does not rust, being easy to clean and providing lightness, flexibility and accuracy in strokes. It has a thick plastic handle and durable stainless steel nib that can stand up to heavy use.
- PRECISION DRAFTING TOOL: This ruling pen is designed for fine line drawing, technical drawing, cartography and calligraphy. It can also be used for making fine lines and borders in Indian ink, gouache, drawing ink and art masking fluid. Excellent for line lines and drawing with ink or other liquids or thin colors.
- SUITABLE FOR USE WITH MASKING FLUID: Dip the ruling pen in the masking fluid and 'scratch' onto your paper, creating very fine lines that will be masked against the paint. Once you have painted your picture, you can remove the masking fluid to reveal very fine lines of unpainted areas on your paper. Great for grasses, small branches, rope, and other fine detail.
- SELECT THE WIDTH WITH THE SCREW ADJUSTER: This adjustable pen is ideal for applying masking fluid as well as for use with paint for creating fine details and lines. Adjust the width of the line required using the wheel then dip the pen into the masking fluid (or paint) then draw long, thin grasses.
- INSTRUCTIONS FOR USE OF RULING PEN: Adjust to your chosen line width, dip the ruling pen in your ink or alternatively 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CCPLTQ85 |
| Best Sellers Rank | #19,273 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #211 in Drawing Pens |
| Brand | LOONENG |
| Closure | Snap |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,227) |
| Date First Available | July 24, 2023 |
| Grip Type | Plastic |
| Ink Color | Black |
| Item Weight | 0.317 ounces |
| Item model number | RP23A002 |
| Line Size | 0_3mm |
| Manufacturer | LOONENG |
| Manufacturer Part Number | RP23A002 |
| Number of Items | 1 |
| Point Type | Fine |
| Product Dimensions | 5.9 x 0.3 x 0.45 inches |
| Size | 1 Count (Pack of 1) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** LOONENG
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Technical Pen

## Images

![LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache - Image 1](https://m.media-amazon.com/images/I/41rdgesEy5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works perfectly with both masking fluid and paint, cleans easily
*by S***M on August 24, 2024*

I used this both with masking fluid to mask some light reflections on cold-press watercolor paper that needed to be regular lines. Just dipped it in bottle, keeping masking fluid well below hinge piece and the screw wheel. Practiced a second to get the angle right for a nice line on a scrap piece. Once you get the angle, it flows smoothly, and the weight is nice and feels balanced in your hand. Lines are clean and smooth, and the tool holds way more fluid than I had expected. No trouble with drips, and the wheel is great for adjusting the width of line as well as for clean up. For clean up, I used just a barely damp paper towel (damp from wiping my brush after painting and dip rinsing in clear water), and you couldn't even tell it had been used. Tried it out with some watercolor paint from a palette well to smooth a line in places, and it worked like a dream. Again, just dipped, gently and quickly stroked outside once against clean edge of palette well. No drips, no need to put in with a brush, at least for me. Clean up still fast and easy no residue. Excellent product.

### ⭐⭐⭐⭐⭐ It works better than anything I've used to apply resist for watercolor!
*by K***S on December 16, 2024*

What I love: 1. It goes on smoothly 2. It adjusts between very fine lines for hair to thicker lines. 3. It cleans up completely and saves fine brushes. 4. The reservoir makes it possible to draw several fine lines before needing to dip again. This makes it quick so you can put the cap on in less time, therefore preventing the resist drying out. 5. I have only used this with Pebeo resist. I can't say it works as well using other products, because I haven't tied it with any other brands of resist. I am one happy girl! This reduced tons of frustration!

### ⭐⭐⭐⭐⭐ Works just as I hoped
*by K***T on April 19, 2023*

I bought this product for creating fine lines with masking fluid. It works really well, just as I hoped - when fully closed it makes very fine lines, when fully open it makes thicker lines. Both are consistent and smooth. It was easy to use and clean. Just dip it in a tiny container filled with masking fluid or the bottle if the opening is wide enough and go - I didn't even have to wipe off the excess from the outside. The only thing that's a little tricky is that the opening in the tip has to be parallel to the line, so turning corners/making sharp turns accurately can be difficult, but that's just how ruling pens work - I just need to practice.

## Frequently Bought Together

- LOONENG Ruling Pen for Masking Fluid, Cross Hinged Ruling Pen for Cartography, Calligraphy, Fine Line Drawing, Suitable for Use with Masking Fluid, Drawing Ink, Indian Ink and Gouache
- Pebeo Easy Peel Liquid Latex Masking Fluid - Drawing Gum - Dries Quickly - For Ink - Watercolor - Gouache Painting & Illustration - Fine Arts & Crafts Supplies - 45ml Bottle
- Crafter's Toolkit Glue and Residue Eraser, 0

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-06*