This 16-piece invisible ink pen set is designed to spark creativity and curiosity in children. Each pen comes with a small notebook filled with fun activities like mazes and math problems, making it not only an engaging toy but also an educational tool. With a UV light, kids can reveal their secret messages and explore the magic of invisible writing. Ideal for sparking imagination and learning through play, this set is perfect for birthday parties, classroom rewards, and more.
  These invisible ink pens are an excellent addition to any party favor collection. The non-toxic, washable ink allows kids to write and erase messages safely on paper, fabric, walls, or skin. Whether used as a classroom prize, a treasure box toy, or a goodie bag stuffer, the set offers endless fun and interactive opportunities. Keep your kids entertained while they learn to write and solve puzzles with this magical set.