---
product_id: 643925084
title: "Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool"
brand: "sakerr"
price: "$19.56"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/643925084-adjustable-ruling-pen-masking-fluid-pen-for-fine-lines-art
store_origin: EC
region: Ecuador
---

# Precision screw for fine tuning Adjustable line width 0.3-2mm+ Durable stainless steel & plastic build Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool

**Brand:** sakerr
**Price:** $19.56
**Availability:** ✅ In Stock

## Summary

> 🖌️ Elevate every stroke—where precision meets creativity!

## Quick Answers

- **What is this?** Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool by sakerr
- **How much does it cost?** $19.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/643925084-adjustable-ruling-pen-masking-fluid-pen-for-fine-lines-art)

## Best For

- sakerr enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted with stainless steel and soft-grip plastic for durability and comfort during long creative sessions.
- • **Master Your Lines:** Adjust line width seamlessly from ultra-fine 0.3mm to bold strokes with precision screw control.
- • **Pro-Level Precision:** Cross-hinged design ensures consistent, clean fine lines that elevate your artwork or technical drafts.
- • **Gift the Creative Edge:** Compact, lightweight, and stylish—ideal for professionals, beginners, or as a thoughtful gift for the artistic soul.
- • **Versatile Artist’s Ally:** Perfect for technical drawing, calligraphy, cartography, and masking fluid applications—your all-in-one creative tool.

## Overview

The Adjustable Ruling Pen by Sakerr is a precision art tool designed for fine line drawing, technical drafting, and calligraphy. Featuring an adjustable screw mechanism, it allows line widths from 0.3mm to over 2mm, accommodating various inks and masking fluids. Made from durable stainless steel and plastic with a comfortable grip, this 12.5cm pen is lightweight and built for long-lasting use, perfect for artists and designers seeking professional-grade control.

## Description

Product Features Masking fluid pen designed for fine line drawing, technical drawing, cartography and calligraphy. Ruling pen can be used with ink, gouache, drawing ink and art masking fluid to paint.  The line width can be adjusted by adjusting the screw. Great for professional or beginner to use.  Product Specifications Material: Metal and plastic Length: 12.5cm  Package Included 1x masking fluid pen

## Features

- Masking Fluid Pen - Ruling pen is designed for fine line drawing, technical drawing, cartography and calligraphy. Precision cross-hinged art ruling pen suitable for masking fluid fine lines ink drawing tool. Ink, other drawing fluids or thin pigments are often used to outline lines and draw.
- Wide Applications - It can also be used for making fine lines and borders in Indian ink, gouache, drawing ink and art masking fluid. With this adjustable line width masking fluid pen, you can create more excellent works. Whether you're a professional artist or beginner, this pen is a must-have. Also can be a great gift for your friends.
- Adjustable - Ruling pen is designed with cross-hinged for variable line width. The line width can be adjusted by the screw adjustment. Whether it is a straight line, thickness, etc., can be achieved.
- Material - The art ruling pen is made of stainless steel and plastic material, comfortable to grip and use, compact and lightweight, solid and good durability. Can be used for a long time.
- Package Included - You will receive 1pc ruling pen. The length of masking fluid pen is 12.5cm/4.92 inch. Masking fluid pen perfect for artists, designers and anyone who loves to draw.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Heng Shui Fen Rui Shang Mao You Xian Gong Si |
| Brand | Sakerr |
| Model Number | SK-MFP |
| Package Dimensions | 12.2 x 10.2 x 0.7 cm; 10 g |
| Colour | Black |
| Grip Type | soft |
| Material Type | Plastic, Stainless Steel |
| Number of Items | 1 |
| Size | 1 count (Pack of 1) |
| Point Type | Fine |
| Line Size | Adjustable, within the range of 0.3mm to 2mm and above |
| Ink Colour | Black |
| Manufacturer Part Number | SKR-MFP |
| Item Weight | 10 g |

## Product Details

- **Brand:** Sakerr
- **Writing instrument form:** Technical Pen
- **Colour:** Black
- **Ink colour:** Black
- **Age range (description):** All
- **Material:** Plastic, Stainless Steel
- **Point type:** Fine
- **Special feature:** Adjustable
- **Unit count:** 1.0 count
- **Model name:** Masking Fluid Pen

## Images

![Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool - Image 1](https://m.media-amazon.com/images/I/41jNeJKdRiL.jpg)
![Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool - Image 2](https://m.media-amazon.com/images/I/61cIpWsjPlL.jpg)
![Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool - Image 3](https://m.media-amazon.com/images/I/61xISh50NoL.jpg)
![Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool - Image 4](https://m.media-amazon.com/images/I/61DAjQdC2XL.jpg)
![Adjustable Ruling Pen - Masking Fluid Pen for Fine Lines - Art Drawing Tool - Image 5](https://m.media-amazon.com/images/I/71VxFw0L6eL.jpg)

## Frequently Bought Together

- Masking Fluid Pen, Ruling Pen Adjustable Cross Hinge Fine Traight Line Art Ruler Pen Art Drawing Fixed Hinged Line Guide Masking Liquid Pen for Masking Fluid Fine Lines Drawing Tool
- MONT MARTE Masking Fluid Premium 120ml (4.06 US fl.oz), Masking Fluid for Watercolour Painting, Keeps Areas Free of Colour And Edges Crisp, Resists Watercolour, Ink and Pouring Paint

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**Shop now:** [https://www.desertcart.ec/products/643925084-adjustable-ruling-pen-masking-fluid-pen-for-fine-lines-art](https://www.desertcart.ec/products/643925084-adjustable-ruling-pen-masking-fluid-pen-for-fine-lines-art)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-05*