Invisible Ink Pen 24Pcs,Spy Pens with UV Light,Magic Marker,Classroom Prize, Birthday Party Favors for Girls Boys,Kids Stocking Stuffers

Very fun for a 9 year old boy. Good value as you get many pens in the set. Everything functions as advertised. Seems durable enough.

This Invisible Ink Pen Set is nothing short of a mission-critical success for kids' parties, classroom activities, and general secret-agent shenanigans. My kids are now convinced they’ve been recruited by MI6. Here's why it's a must-have:What’s to Love?🕵️ Ultimate Spy GearWith 24 pens, notebooks, and spy-themed templates, this set is everything a budding detective needs to solve crimes, decode riddles, and leave secret messages. The UV light on each pen makes them feel like true secret agents uncovering hidden truths. (Mostly snack inventories and "Who stole my cookie?" cases.)🔦 Magic Meets FunThe invisible ink is genius—completely invisible until you shine the built-in UV light on it. My kids went wild leaving "top secret" messages all over the house. Bonus: I joined the fun and now have hidden notes reminding me where I hid the chocolate.🎉 Party Favorite ExtraordinaireThese are THE party favors of the century. They outshine standard goodie bag items like stickers and candy. Kids love the detective vibes, and adults love that they’re engaging, mess-free, and inspire creativity. Win-win.📚 Educational + EntertainingTeachers, take note! These pens are perfect for classroom treasure hunts, problem-solving games, and adding excitement to learning activities. (Also, they make reading assignments seem like covert operations.)🔒 Safe and Kid-FriendlyThe built-in battery is secure, and the cork stopper is designed with safety in mind, so no accidental spy-related mishaps here. Parents, rejoice!Final Verdict: A Disappearing Act Worth RepeatingThis set has been a massive hit in our home. Whether it’s for parties, stocking stuffers, or just keeping the kids entertained on a rainy day, the Invisible Ink Pen Set delivers fun, creativity, and a dash of mystery. If your kids love playing detective—or you just want to feel like a secret agent for a day—this is the ultimate pick. Highly recommend for every aspiring spy and their equally curious parents!

All the kids loved these. They're a lot of fun to play with and work well. As long as you cap it, the marker doesn't dry out. We've had them for 3 months, and they get pretty regular use and the battery hasn't died. These also went as birthday party favors in the goody bags.

Great for a detective party or just great overall to write and decode secret messages. Pen color does not equal ink color. The pen color is invisible, though if you write on a neon sticky note, you may see the message and it'll take longer to dry and turn invisible. Kids can use these to also write on their skin for secret temporary messages or "tattoos." Cost is reasonable with the inclusion of the notepads. Make sure to keep the cap on tight or the ink will dry out.

**The Adventure Begins:**Ever wanted to send top-secret messages, uncover hidden clues, or imagine yourself as a world-class detective? With the Inkipen Invisible Ink Pen Set, kids can dive into a world of mystery, adventure, and even science! This 24-pack set, complete with notebooks and UV light pens, is more than just a party favor—it’s a gateway to creativity, curiosity, and hands-on learning. **Product Overview:**The set includes 24 invisible ink pens with UV lights, each with colorful casings, and 24 detective-themed notebooks. Kids can write secret messages that appear only under UV light, perfect for sending hidden notes or adding a twist to classroom activities. It’s a fun, safe (non-toxic and washable) way for kids ages 4-12 to explore their creative side while learning about the science behind "invisible" writing. **Features and Benefits:**Each pen writes in transparent ink that magically appears under the UV light on the pen cap—ideal for kids who want to keep their messages under wraps. And this set goes beyond mere party fun; it can be a fantastic educational tool, especially for young minds fascinated by science. **A Biologist’s Take on Why This Set is Pure Gold for Education:**As someone who enjoys teaching kids about cells and DNA, I see these pens as an imaginative way to introduce complex scientific ideas in a fun, approachable way. Here’s how:- **DNA Visualization Concept**: Just as the UV light reveals hidden ink, scientists use specific techniques to uncover DNA sequences. This idea can give kids a glimpse into how scientists reveal what’s hidden within our cells.- **Cell Staining Principle**: Biologists often stain cells to highlight their structures. With these pens, kids can relate to this process by using light to reveal hidden “structures” (their secret messages), adding a layer of learning to their fun.- **Microscopy and Light Sources**: The UV light mirrors how special lighting enhances visibility in scientific studies. Explaining this while they play can introduce kids to the world of microscopes and microscopy, sparking their curiosity for biology. **Educational Fun and Creative Experimentation:**Kids can try developing their own secret coding systems, practice problem-solving by writing invisible notes, or experiment with different surfaces and pressures to see what makes the ink glow brighter under UV light. The possibilities are endless for young detectives and budding scientists alike. **The Verdict:**For parties, classroom activities, or just at-home exploration, this pen set is a perfect blend of fun and learning. From sparking creativity to encouraging a scientific mindset, it’s a great way to engage kids in critical thinking while keeping them entertained.**Rating: 4.8 Stars**Why? Because it’s more than just a toy—it’s a stepping stone to learning, a chance for kids to think like scientists and detectives. The only thing holding it back is that the UV lights require careful supervision, but with that in place, it’s a fantastic gift. **Final Thoughts:**The Inkipen Invisible Ink Pen Set is more than just a party favor. It’s a tool for learning, a canvas for creativity, and a way for kids to engage with scientific ideas in an unforgettable way. Ideal for parties, classrooms, or just a rainy day activity, it’s a gift that entertains, educates, and excites. So grab a pen, turn on the UV light, and let the detective work—or science lesson—begin!