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30PCS Invisible Ink Pens with UV Light Party Bag Fillers for Boys and Girls, Magic Pen Disappearing Ink Pen for Kids, UV Pen for Writing Secret Message
WRITE YOUR SECRET MESSAGE Write your secret message with these magic pens for kids! Light up the built-in UV light on the pen’s cover to reveal the invisible ink - the secret message. *The pen shell colors are black, blue, green, yellow, purple and red, but the ink is transparent. SAFE AND NON-TOXIC The invisible ink pen is non-toxic, harmless and tasteless, which is safe for your kids! Smooth and disappearing inks on t-shirts, paper, skin and any surface. Permanent but washable. Note Children under 3 years are encouraged to use it under the supervision of parents

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Price: $18.99