✍️ UV Invisible Ink Pen with Built-In UV Light

Random Color Sent ✍️ UV Invisible Ink Pen with Built-In UV Light Write your secrets in plain sight! The UV Invisible Ink Pen lets you draw or write messages that stay hidden until revealed by the built-in UV light. Perfect for marking valuables, creating secret notes, or testing UV-reactive materials. ⚙️ Features 💡 Built-in UV light – reveals invisible ink instantly 🖊️ Invisible ink – writes clearly under UV, invisible under normal light 🔋 Battery included – ready to use right out of the package 🎨 Fun & practical – great for security marking, crafts, and science experiments 🔍 Compact and portable – fits easily in a pocket, bag, or desk drawer 🧒 Safe for kids and adults – low-power UV LED and non-toxic ink 📏 Specifications Ink Type: Invisible UV-reactive ink Light Type: UV LED (built-in) Power: Battery included Barrel Style: Plastic pen with removable cap Ink Color (visible under UV): Blue-white glow Size: Approx. 13.5 cm length 💡 How to use:1️⃣ Write