Spyx Invisible Ink Pen 10126

The Spyx Invisible Ink Pen is an exciting boys' toy from the Spyx brand, designed to let your child write, read, and share invisible messages with fellow secret agents. This innovative pen uses UV light to reveal top-secret spy messages, adding an element of mystery and fun. It features a secret compartment to securely store your secret paper supply, keeping all messages safe and confidential. The pen's big ergonomic design comfortably fits your junior agent's grip, making it easy to use. For optimal performance, replace the 3 386 (LR43) button cell batteries if the UV light stops working, note that only adults should handle battery installation and replacement.