LEGAMI Unicorn "Dream big" magic pen, 2 tips.

Hidden in plain sight — that's the secret of Legami's Invisible Ink Magic Pen. Thanks to its double tip, you can write in classic blue ink and, in an instant, switch to spy mode with invisible ink. Only by using the special UV light in the cap does what you've written become visible. Perfect for love letters, secret messages with your best friend, or notes for school tests. The teacher won't suspect a thing!