Hozyvilla 30PCS Invisible Ink Pen with UV Light,Cute Castle Theme Party Spy Pen with 30 Notebook Set,Magic Marker for Secret Message School Supplies Birthday for Kids 4-6 8-12

Creative Invisible Ink Pen:A magical magic pen,invisible ink pens with uv light for kids， that can only display the written content through ultraviolet irradiation of the pen. Invisible Ink Pen set with 30pcs castle themed mini notebooks,this set provides an unforgettable experience for any group activity or party favor.

Hide Your Written Secret Message:This magical invisible ink pen allows you to write your secret message and hide it. The writing written by the invisible ink pen is transparent, you can turn on the UV light on the pen cap and discover the secret message

Safe and Non-Toxic: Our magic pens are made with safety in mind. The ink is tasteless, non-toxic, and safe for use by children. It smoothly disappears on t-shirts, paper, skin, and any surface, ensuring a worry-free playtime

Invisible Ink Pens With UV Light:The invisible ink pen set will provide endless entertainment for any kid who experiences it! Perfect spy gear for escape rooms, detective games, riddles, temporary tattoos and more! This invisible ink pen set will provide hours of entertainment.

Fun and Creative:This fun invisible ink pen can be used as gifts and prizes for students. They can use it to draw tattoos on their arms or make games and write the answers with the secret pen. It’s so engaging that students will love it and work hard to get prizes.