--- product_id: 450305483 title: "Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g" brand: "leinuosen" price: "FREE" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/450305483-leinuosen-3-pack-conductive-ink-pen-for-kids-circuit-pen store_origin: TN region: Tunisia --- # 3-pack conductive ink pens Quick-dry ink for instant testing Fine point for precise circuit drawing Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g **Brand:** leinuosen **Price:** FREE **Availability:** ✅ In Stock ## Summary > ⚡ Draw the future, one circuit at a time! ## Quick Answers - **What is this?** Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g by leinuosen - **How much does it cost?** FREE with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/450305483-leinuosen-3-pack-conductive-ink-pen-for-kids-circuit-pen) ## Best For - leinuosen enthusiasts ## Why This Product - Trusted leinuosen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Science Meets Fun:** Perfect for DIY projects, classroom experiments, and sparking innovation in every generation. - • **Triple Power Pack:** Three pens in one set to keep your projects flowing and your creativity unstoppable. - • **Durable & Reliable:** Crafted from sturdy PP material and copper ink that won’t fade or break under pressure. - • **Instant Circuit Validation:** Draw, dry, and test immediately—watch your light come alive with flawless conductivity. - • **Precision at Your Fingertips:** Fine tip design ensures clean, accurate circuit lines every time—no guesswork needed. ## Overview Leinuosen’s 3 Pack Conductive Ink Pens deliver precision copper ink in a quick-drying, durable formula designed for kids and adults alike. Each fine-point pen enables easy, accurate circuit drawing and instant testing, making it ideal for science projects, DIY electronics, and educational experiments. ## Description Features: Fine workmanship: Each conductive ink pen is designed in fine workmanship, delicate appearance, and good texture, in line with most people's aesthetic, and you can use it many times. Considerate presents: If you have friends who need a circuit pen in work, you can give them our conductive pen kit, your friends will like the gift and feel happy. Specifications: Main material: PP Color: as shown in the picture Size: approx. 127 x 13 mm/ 5 x 0.51 inches Package includes: 3 x Conductive ink pens Notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays. The words printed on the product are not as trademark or brands, just for decoration, our brand is Leinuosen. Please pay attention to safety when using. ## Features - Package Information: you will get 3 pieces of conductive ink pens for kids circuit building with size in approx. 127 x 13 mm/ 5 x 0.51 inches; These products will meet your using needs and replacements needs, and you can share them with your friends - Reliable Material: our conductive pen kits are mainly made form quality PP material, sturdy and stable, not easy to break or fade, can be quickly dried, which will serve you for a long time - Practical Functions: you can use these circuit pens to check your circuit; After you have drawn the line, you can put a light over the line, if your line is correct, the light will light up - Easy to Use: you can shake conductive ink pen before using the pen, without pausing in the drawing process; When the ink dries, you can put on the light; Please pay attention to safety when using - Wide Ranges of Applications: you can use our conductive pen kits in various occasions, like circuit, science experiment, DIY science projects, etc., and can be applied for most people to use ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Leinuosen | | Brand | Leinuosen | | Item Weight | 1.76 ounces | | Product Dimensions | 5.91 x 1.57 x 0.59 inches | | Item model number | Leinuosen-Circuit-JIE89 | | Closure | Snap | | Material Type | copper | | Number of Items | 3 | | Size | 3 Count (Pack of 1) | | Point Type | Fine | | Ink Color | Multicolor | | Manufacturer Part Number | Leinuosen-Circuit-JIE89 | ## Product Details - **Brand:** Leinuosen - **Package Information:** Tube - **Paint Type:** Alcohol - **Manufacturer:** Leinuosen - **Number of Items:** 3 ## Images ![Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g - Image 1](https://m.media-amazon.com/images/I/61gjr8nAAhL.jpg) ![Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g - Image 2](https://m.media-amazon.com/images/I/71Dof1PIAHL.jpg) ![Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g - Image 3](https://m.media-amazon.com/images/I/81wGFHWKq5L.jpg) ![Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g - Image 4](https://m.media-amazon.com/images/I/71lnKjsOFtL.jpg) ![Leinuosen 3 Pack Conductive Ink Pen for Kids Circuit Pen Conductive Paint Kit for Adults Circuit, Science Experiment, Science Projects, 3g - Image 5](https://m.media-amazon.com/images/I/71yqydTlxjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent *by J***. on February 17, 2024* Excellent for fixing the bad contact of buttons in remote controls and button panels. ### ⭐ Useless, goopy mess *by H***0 on May 27, 2023* I'm a hardware engineer. I needed some of these in a pinch and these were available in the timeframe. I had a relatively simple need to retrace a membrane for an old joystick. Anyone who's dealt with those knows that the traces are pretty wide. While I'm a pretty steady hand, able to solder and do everything else I need to without issue, I couldn't maintain a proper flow with this and the lines are extremely wide. Maybe this would be fine for a kid on paper to learn about... Wait... no... don't even get this for your kids. It's not any good. I have some Circuit Scribe on the way. That stuff works properly. Alas... these joysticks have to wait until Sunday. I won't make this mistake again. ### ⭐⭐⭐⭐ Fun item, ok quality *by A***G on May 9, 2024* Great activity for kids or adults! Shake to get the pen started. Ink begins to flow allowing for flexible projects. Had an issue with some pens arriving damaged- but was quickly provided with a replacement. --- ## 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.tn/products/450305483-leinuosen-3-pack-conductive-ink-pen-for-kids-circuit-pen](https://www.desertcart.tn/products/450305483-leinuosen-3-pack-conductive-ink-pen-for-kids-circuit-pen) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-28*