These invisible ink spy pens turn any kid into a covert operative: write the message in invisible ink, pass it off, and let the built-in UV light on the cap reveal the secret. The set includes a red pen and a black pen with batteries installed, so missions start the moment the box opens. Notes between siblings, treasure hunt clues, and classified lunchbox intel all suddenly require clearance. A gift-boxed favor that works for a spy party or a very serious stocking.
Perfect for: secret agent parties, stocking stuffers, kids' party favors, and treasure hunt clues. Recruit more gadgets from our kid's party favors.
