# LOONENG Ruling Pen for Masking Fluid, Fine Line Drawing, Technical Cartography & Calligraphy, 0.5mm (0.02 inch) **Brand:** LOONENG **SKU:** xfj0849 **ASIN:** B075B44QJ7 **Canonical URL:** https://crowcrowcrow.com/p/looneng-ruling-pen-masking-fluid-fine-line-drawing-technical-cartography-calligraphy/xfj0849 **Category:** home-kitchen **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹1,235 **Discount:** 6% **Customer rating:** 4.50/5 from 2,245 ratings ## Description LOONENG Ruling Pen for Masking Fluid offers precise line control for artists. Features an adjustable screw for fine line width, ideal for drawing, cartography, and calligraphy. Use with ink, gouache, or masking fluid. Durable stainless steel construction ensures accuracy and flexibility. Arrives in {{ccc_delivery_eta}}. ## Highlights - Adjustable Line Width Control — Precisely set line thickness from hairline to wider strokes using the side screw adjuster, ensuring accuracy for technical drawings, cartography, and calligraphy needs. - Versatile Fluid Application — Works with drawing ink, Indian ink, gouache, watercolors, and masking fluids. Ideal for creating clean lines and revealing unpainted areas after masking fluid application. - Durable Stainless Steel Construction — Crafted from high-strength, flexible stainless steel that resists rust and wear, providing lightness and accuracy for consistent, long-lasting performance in your art. - Fine Line Precision for Artistry — Designed for creating accurate fine lines essential for detailed artwork, technical illustrations, and calligraphy, offering a superior alternative to standard pens for precision tasks. ## Key features - 【ART RULING PEN DRAWING PAINTING TOOL】Ruling pens are traditionally designed instruments that lay down lines in ink, paint, or any fluid medium with the viscosity to flow. Excellent for creating precise lines and drawing with ink, drawing and masking fluids, or even thin paints. - 【SELECT THE WIDTH WITH THE SCREW ADJUSTER】The two parts of the tip hold ink or with other drawing fluids between them by capillary action. By adjusting the screw on the side, you can carefully and very accurately adjust the width of the line you're creating. It is used to draw lines of precise thickness with paint or ink. - 【INSTRUCTIONS FOR USE OF RULING PEN】 Adjust to your chosen line width, dip the ruling pen in ink or 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. - 【USED TO CREATE ACCURATE FINE LINES】Ruling pen is designed for fine line drawing, cartography, calligraphy, and technical drawings. It can also make fine lines and borders in Indian ink, gouache, drawing ink, watercolors, and masking fluids. In addition, it is used to draw lines of precise thickness with paint or ink. - 【DURABLE STAINLESS STEEL CONSTRUCTION】The ruling pens are crafted in stainless steel with elastic properties, excellent strength, and durability. They do not rust, are easy to clean and provide lightness, flexibility, and accuracy in strokes. In addition, thick plastic handles and durable stainless steel nibs can withstand heavy use. ## Why choose this product - Precision Engineering for Artists - Ideal for Detailed Art & Masking ## How to use 1. Carefully turn the screw on the side of the ruling pen to open or close the nibs, setting your desired line thickness. Test on scrap paper to confirm the width. — Adjust Line Width 2. Dip the tip of the ruling pen into your chosen fluid (ink, gouache, or masking fluid). Avoid overfilling; a small amount is sufficient for drawing. — Load with Fluid 3. Apply the pen to your paper, drawing smooth, consistent lines. For masking fluid, let it dry completely before painting over the masked areas. — Draw Your Lines 4. Immediately after use, rinse the nib thoroughly with water or the appropriate solvent. Dry the pen and store it carefully to maintain its precision. — Clean and Store ## Product details | Field | Value | |---|---| | Ink Color | Black (compatible with) | | Nib Pliability | Rigid | | Recommended Uses | Drawing, Cartography, Calligraphy, Technical Drawings | | Suitable Fluids | Drawing Ink, Indian Ink, Gouache, Watercolors, Masking Fluids | | Usage Instructions | Adjust line width, dip in fluid, draw. For masking fluid: let dry, paint, then remove masking fluid. | | Unit Count | 1 Count (Pack of 1) | | Cost per use | 15g pen at 1g/use = 15 uses: {{ccc_price_per_unit:15:use}} | | Shelf life after opening | N/A (tool) | | Contraindications | Not suitable for thick paints or fluids that clog easily. Requires careful handling to avoid damage. | | Allergens / common irritants | Stainless steel (rarely causes reactions) | | Brand | LOONENG | | Model Name | DA17A012 | | Part Number | DA17A012 | | Color | Green | | Material | Stainless Steel | | Item Weight | 15 grams | | Item Dimensions | 12.9 cm x 14.6 cm x 1.6 cm (5.08 inches x 5.75 inches x 0.63 inches) | | Line Size | 0.5 millimeters (0.02 inches) | | Style | Traditional | | Pattern | Solid | | Grip Type | Soft | | Hand Orientation | Ambidextrous | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How is this LOONENG Ruling Pen authentic vs the version sold in Indian stores? This LOONENG Ruling Pen is sourced directly from authorized US retailers, factory-sealed, and imported per-order. It offers the same quality and precision as the SKU US buyers receive. All customs duties and GST are included in the displayed price, and orders arrive within {{ccc_delivery_eta}} via ExpressBox tracked shipping. ### Will the ruling pen I receive match what is shown on the US retailer's page? Yes, orders are placed against the listed US retailer page at the time of purchase. Batch codes and packaging match what the US retailer dispatches. Photographs of every order are taken before international handover to ensure accuracy. ### What is the best way to use a ruling pen for masking fluid? Adjust the ruling pen to your desired fine line width. Dip the nib into masking fluid, ensuring not to overfill. Draw your lines onto the paper. Allow the masking fluid to dry completely before applying paint or ink over it. Once your artwork is dry, gently remove the masking fluid to reveal the unpainted areas. ### Can I use this ruling pen for calligraphy or technical drawings? Yes, the LOONENG Ruling Pen is designed for creating accurate fine lines essential for technical drawings, cartography, and calligraphy. Its adjustable line width allows for precise thickness control, making it suitable for detailed lettering and drafting work. ### What types of ink or paint can I use with this ruling pen? This ruling pen is suitable for various fluid mediums including drawing ink, Indian ink, gouache, watercolors, and masking fluids. Ensure the fluid has a viscosity that allows it to flow correctly between the nibs for consistent line application. ### How do I clean the ruling pen after use? After each use, carefully rinse the ruling pen nib with water or the appropriate solvent for the medium used. Ensure all fluid residue is removed to prevent clogging. Gently dry the nib and store it properly to maintain its precision and longevity. ### Is this ruling pen suitable for beginners in art? Yes, while it requires a bit of practice to master line width adjustment, the LOONENG Ruling Pen is an excellent tool for beginners looking to achieve precise lines. Its durable construction and clear instructions make it a valuable addition to any budding artist's toolkit. ## Compliance Not suitable for children under 3 years due to small parts. Handle with care to avoid injury. ## Images 1. https://images.crowcrowcrow.com/B075B44QJ7-0.webp 2. https://images.crowcrowcrow.com/B075B44QJ7-3.webp 3. https://images.crowcrowcrow.com/B075B44QJ7-6.webp 4. https://images.crowcrowcrow.com/B075B44QJ7-9.webp 5. https://images.crowcrowcrow.com/B075B44QJ7-12.webp 6. https://images.crowcrowcrow.com/B075B44QJ7-15.webp --- Source: https://crowcrowcrow.com/p/looneng-ruling-pen-masking-fluid-fine-line-drawing-technical-cartography-calligraphy/xfj0849 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).