--- product_id: 40212307 title: "Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity" brand: "qiyo" price: "S$17" currency: SGD in_stock: true category: "Misc." url: https://www.desertcart.sg/products/40212307-invisible-ink-pen-spy-pen-magic-marker-secreat-message-writer store_origin: SG region: Singapore --- # Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity **Brand:** qiyo **Price:** S$17 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity by qiyo - **How much does it cost?** S$17 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/40212307-invisible-ink-pen-spy-pen-magic-marker-secreat-message-writer) ## Best For - qiyo enthusiasts ## Why This Product - Trusted qiyo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Invisible Ink Pen, QIYO Spy Pen Invisible Ink Pen with UV Light Magic Marker for Secret Message and Kids Halloween Goodies Bags Toy Fun Party Favors Features: Spy pen comes in a pack of a variety of colors Black, Yellow, Purple, and Blue. This pen makes a great gift for your Child, your Grandchild, your Students, your Neighbors, your little Brother , your little Sister, Birthdays, Surprise parties & more! Harmless and flavorless ink,healthy toys for your children! PLEASE DO NOT use on some special surface, like: glass or smooth plastic film, etc; it will influence the effect, and easily to be erased. Permanent but washable easily. This Spy pen also has a UV light on the opposite end. To operate it all you have to do is turn your pen to the opposite side, push the flashlight button, and voila! A blue color UV light will shine and reveal your message. The flashlight runs on three button-cell batteries. The uv light on the pen can also be used as the currency checking tool. Perfectly work as Birthday Gifts,Halloween Gifts,Christmas Presents for kids,children friends and classmates and so on. ## Features - SECRET SPY MESSAGE WRITTING - QIYO invisible magic ink pen enables you to write secret message. The ink is invisible after you write with it,unless you light on the cap uv light to see the secret message perfectly. - SAFE AND ENVIRONMENTAL FRIENDLY - Flavorless and non-toxic ink, harmless to kids; It can be wrote on T-Shirts,paper,skin! Permanent but washable! (PLEASE DO NOT use on some special surface, like: glass or smooth plastic film, etc; it will influence the effect, and easily to be erased). - GREAT FOR KIDS SPY ACTIVITY - Kids will love to use these spy pens to play detective spy games. Invisible pen will bring them endless joyness and an amazing variety of fun activities. For surprise paties, they could write secret message to their parents or grandparents. - IDEAL PARTY FAVORS - Our invisible ink pen comes in a pack of 6 assorted colors. Hallween party goodies, perfect for the RSVP's to wedding invitations;Goody bags for kids spy party;Great goddie bag treat.Birthday Gifts,Halloween Gifts,Christmas Presents for kids and friends. - GUARANTEE- 100% SATISFACTION MONEY BACK GUARANTEE - NO CONDITIONS - Your Satisfaction Is Guaranteed (Batteries Included and Installed). ## Images ![Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity - Image 1](https://images-na.ssl-images-amazon.com/images/I/41iS4-4cANL.jpg) ![Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity - Image 2](https://images-na.ssl-images-amazon.com/images/I/41jt27yIQDL.jpg) ![Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity - Image 3](https://images-na.ssl-images-amazon.com/images/I/41QO9gCLiAL.jpg) ![Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity - Image 4](https://images-na.ssl-images-amazon.com/images/I/41UdaPZoxDL.jpg) ![Invisible Ink Pen Spy Pen Magic Marker Secreat Message Writer with UV Light Currency Checking Technical Drawing Pens Party Favors Goody Stuffer Ideal for Kids Fun Activity - Image 5](https://images-na.ssl-images-amazon.com/images/I/315pxA6SQrL.jpg) --- ## 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.sg/products/40212307-invisible-ink-pen-spy-pen-magic-marker-secreat-message-writer](https://www.desertcart.sg/products/40212307-invisible-ink-pen-spy-pen-magic-marker-secreat-message-writer) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-17*