SCStyle Invisible Ink Pen 10Pcs With UV Light Party Favors for kids,Spy Pen

You’ll find these invisible ink pens handy for secret messages that only appear under a UV light. They’re a fun addition to birthday parties or science demos.
Ideal for kids who love spy themes or for teachers wanting a simple, engaging activity in the classroom.
The set includes ten pens and a UV light, so you can share the glow with friends or classmates.