--- product_id: 635820281 title: "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: "€ 26.82" currency: EUR in_stock: true reviews_count: 5 category: "Looneng" url: https://www.desertcart.gr/products/635820281-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen-cartography store_origin: GR region: Greece --- # Perfect for masking fluid & inks Adjustable fine line precision Stainless steel durability 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:** € 26.82 **Availability:** ✅ In Stock ## Summary > 🎨 Master every fine line—where precision meets artistry. ## Quick Answers - **What is this?** 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?** € 26.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/635820281-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen-cartography) ## 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:** Durable stainless steel nib and elastic construction resist rust and heavy use, ensuring longevity. - • **Versatile Artistic Tool:** Ideal for calligraphy, cartography, technical drawing, and applying masking fluid with flawless control. - • **Engineered for Precision:** Adjust line width effortlessly with the screw adjuster for ultra-fine, consistent strokes. - • **Lightweight & Comfortable:** Thick plastic handle offers ergonomic grip for extended creative sessions without fatigue. - • **Effortless Masking Mastery:** Create intricate masked details like grasses and branches that pop after painting—stand out in every artwork. ## Overview The LOONENG Ruling Pen is a premium stainless steel drafting tool designed for professionals and creatives seeking precision in calligraphy, cartography, and fine line drawing. Featuring an adjustable screw for customizable line widths and compatibility with masking fluid, Indian ink, and gouache, it delivers durable, rust-resistant performance with a comfortable grip, making it essential for detailed artistic and technical work. ## Description Ruling pen is a drawing instrument for drawing with ink, paint, or any fluid medium with the viscosity to flow. The two parts of the ruling pen tip hold ink or with other drawing fluids between them by capillary action. It enables precise rendering of thin lines, the line width can be adjusted by turning the screw which connects the jaws. For drawing of lines and borders in ink, watercolors and gouache, and can be used for applying masking fluid. Review: Excellent tool, works so well - I had heard about this item a long time ago and was excited to see it available. It is excellent for applying thin lines of masking fluid. Goes on easily and smoothly. You can easily adjust the opening for different thicknesses. Highly recommend. 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. ## Technical Specifications | Specification | Value | |---------------|-------| | Age range (description) | Adult | | Brand | LOONENG | | Colour | Black | | Ink colour | Black | | Material | Plastic | | Writing instrument form | Technical Pen | ## Product Details - **Age range (description):** Adult - **Brand:** LOONENG - **Colour:** Black - **Ink colour:** Black - **Writing instrument form:** Technical Pen ## Images ![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) ![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 2](https://m.media-amazon.com/images/I/61orBoSB83L.jpg) ![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 3](https://m.media-amazon.com/images/I/61WKSSvgQ3L.jpg) ![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 4](https://m.media-amazon.com/images/I/71ZeHy0zEJL.jpg) ![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 5](https://m.media-amazon.com/images/I/61McXzc1JkL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent tool, works so well *by J***N on 7 January 2025* I had heard about this item a long time ago and was excited to see it available. It is excellent for applying thin lines of masking fluid. Goes on easily and smoothly. You can easily adjust the opening for different thicknesses. Highly recommend. ### ⭐⭐⭐⭐⭐ Works perfectly with both masking fluid and paint, cleans easily *by S***M on 24 August 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. ### ⭐⭐⭐⭐⭐ Great Quality *by B***N on 31 October 2025* Very nice quality. Definitely above the $10 variety. Excellent for ink or masking fluid. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/635820281-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen-cartography](https://www.desertcart.gr/products/635820281-ruling-pen-for-masking-fluid-cross-hinged-ruling-pen-cartography) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-08*