# LOONENG Ruling Pen for Masking Fluid, Fine Line Drawing & Calligraphy 1 Count (Pack of 1) **Brand:** LOONENG **SKU:** vpr4425 **ASIN:** B07F28WKVJ **Canonical URL:** https://crowcrowcrow.com/p/looneng-ruling-pen-masking-fluid-designed-cartography-calligraphy-fine-line-drawing/vpr4425 **Category:** home-kitchen **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹1,320 **Discount:** 39% **Customer rating:** 4.50/5 from 2,245 ratings ## Description LOONENG Ruling Pen offers precision for artists using masking fluid, ink, or gouache. Crafted from durable stainless steel with an adjustable width, it's perfect for fine lines in cartography, calligraphy, and technical drawings. Imported for Indian artists seeking accuracy. 13-16 days ## Highlights - Precision Line Control — Adjustable screw mechanism allows for precise line width control, ideal for creating fine details like grass, branches, or borders in your artwork. Achieve consistent results for intricate designs. - Durable Stainless Steel Build — Crafted from strong, rust-resistant stainless steel with a comfortable plastic handle, this pen is built for heavy use and provides lightness, flexibility, and accuracy in every stroke. - Versatile Medium Compatibility — Works seamlessly with masking fluid, drawing ink, gouache, and Indian ink, enabling a wide range of artistic applications from technical drawings to detailed watercolor masking. - Ideal for Detailed Artwork — Perfect for creating fine lines and details in cartography, calligraphy, and technical drawings, especially for masking fluid applications where precision is paramount. ## Key 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. ## Why choose this product **Achieve Intricate Detail with Precision** — For artists in India demanding accuracy, the LOONENG Ruling Pen offers superior control. Its stainless steel nib and adjustable width allow for the creation of exceptionally fine lines, perfect for detailed cartography, delicate calligraphy, or precise technical drawings. Unlike broader tools, this pen lets you 'scratch' fine lines with masking fluid, revealing crisp unpainted areas after painting. This imported tool ensures your artistic vision translates precisely onto the paper, providing a professional finish for your artwork. **Who Should Use It & Who Should Skip** — This ruling pen is ideal for artists, illustrators, cartographers, and calligraphers who require fine, consistent lines for detailed work with masking fluid, ink, or gouache. It's particularly useful for creating textures like grass or hair, and for precise border work. However, if you primarily work with broad strokes or require a pen for very thick paints, this fine-tipped tool may not be the best fit. Those seeking a simple, non-adjustable pen for basic line drawing might also find its precision features more than they need. ## How to use 1. Turn the screw adjuster on the ruling pen to set your desired line width. Experiment to find the perfect thickness for your fine lines, from hairline to slightly broader strokes. — Adjust Line Width 2. Dip the nib of the ruling pen into your chosen medium – masking fluid, drawing ink, Indian ink, or gouache. Ensure only the tip is loaded to avoid excess material. — Load the Pen 3. Draw onto your paper with steady pressure to create precise lines. For masking fluid, allow it to dry completely before painting over the masked areas. — Draw Fine Lines 4. Once your painting is dry, carefully remove the masking fluid to reveal your fine, unpainted lines. Clean the ruling pen thoroughly with water or appropriate solvent after each use to maintain its condition. — Reveal and Clean ## Product details | Field | Value | |---|---| | Ink Base | Water-based (when used with ink) | | Nib Material | Stainless Steel | | Handle Material | Plastic | | Recommended Uses | Drawing, Calligraphy, Cartography, Technical Drawing, Masking Fluid Application | | Compatible Media | Masking Fluid, Drawing Ink, Indian Ink, Gouache | | Line Width Adjustment | Adjustable via screw | | Cost per use | 1 unit at ₹1,320 — ₹1,320 per pen | | Shelf life after opening | N/A (Durable tool) | | Reapplication math | N/A (Durable tool) | | Contraindications | Not suitable for very thick paints or broad strokes. | | Allergens / common irritants | None stated | | Brand | LOONENG | | Model Name | AD18A161 | | Part Number | AD18A161 | | Material | Stainless Steel, Plastic | | Color | Black | | Line Size | Adjustable (Fine) | | Dimensions (L x W x H) | 13.5 cm x 1.0 cm x 1.2 cm (5.31 in x 0.39 in x 0.47 in) | | Weight | 9 g (0.009 kg) | | Count | 1 | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How to buy an original LOONENG Ruling Pen for Masking Fluid in India? Ensure your purchase is from crowcrowcrow.com, an authorized importer of original USA-market products. We source directly from authorized US retailers, ensuring factory-sealed items with all customs duties and GST included. Your order is shipped via ExpressBox with tracking for peace of mind. ### What is the difference between a kneaded eraser and a vinyl eraser? A kneaded eraser is soft and moldable, lifting graphite and charcoal by dabbing without leaving crumbs, making it ideal for shading and highlights. A vinyl (plastic) eraser removes graphite cleanly with a firm edge, suited to precise line correction on drawings. ### Can I use this ruling pen for charcoal and colored pencil drawings? This ruling pen is primarily designed for ink and masking fluid. While it can be used for fine lines in drawings, it is not an eraser and therefore not directly suitable for charcoal or colored pencil removal. For charcoal lift-out, a kneaded eraser is recommended. ### Is this ruling pen suitable for watercolor masking? Yes, this ruling pen is specifically designed for use with masking fluid in watercolor painting. It allows you to apply masking fluid to create very fine lines and details, which are then revealed once the paint is dry. ### What kind of ink can I use with this ruling pen? You can use various types of ink with this ruling pen, including drawing ink, Indian ink, gouache, and specifically art masking fluid. The pen is designed to handle thin liquids and colors for precise line work. ### How do I adjust the line width on the ruling pen? The ruling pen features a screw adjuster. You can adjust the width of the line required by turning the wheel. Once set, dip the pen into your chosen medium (ink or masking fluid) and draw to create lines of the desired thickness. ### Does the ruling pen come with ink? No, the LOONENG Ruling Pen is sold as a tool and does not include ink or masking fluid. You will need to supply your own preferred drawing ink, Indian ink, gouache, or masking fluid for use with the pen. ### What are the dimensions of the ruling pen? The ruling pen measures approximately 13.5 cm in length, 1.0 cm in width, and 1.2 cm in height (5.31 inches x 0.39 inches x 0.47 inches). It is designed to be lightweight and easy to handle for detailed work. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B07F28WKVJ-0.webp 2. https://images.crowcrowcrow.com/B07F28WKVJ-3.webp 3. https://images.crowcrowcrow.com/B07F28WKVJ-6.webp 4. https://images.crowcrowcrow.com/B07F28WKVJ-9.webp 5. https://images.crowcrowcrow.com/B07F28WKVJ-12.webp 6. https://images.crowcrowcrow.com/B07F28WKVJ-15.webp --- Source: https://crowcrowcrow.com/p/looneng-ruling-pen-masking-fluid-designed-cartography-calligraphy-fine-line-drawing/vpr4425 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 13-16 days. Prices are all-inclusive (duties + GST).