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Every spy needs a secret Invisible Ink code kit! Learn the science of Invisible ink with our complete spy set, including clever, combined pen with Black light and Spy notebook. A classic toy for you little sleuth or budding scientist!
Type: Plastic Pen and Science Kit • Batteries included
Category: Science Kits • Not for children under 3
Size: 5" Long (Black Light Pen with Secret Invisible Ink)
Package: Plastic Gift Card