Harmless & Flavorless Ink, Healthy Toys for Your Children! Smooth & Colorful Disappearing Inks on T-shirts, Paper, Skin, & Any Surface! Permanent But Washable!its Perfect for Sending Secret Messages or Adding a Unique Touch to Invitations & Greeting Cards. the Pen Also Includes a Clip for Easy Attachment to Paper & Books, as Well as a Safety Card to Prevent Unintended Uv Activation During Shipping. Ideal for Childrens Spy Games, Weddings, or Promotional Gifts. 5.2 Inch L x 0.7 Inch W

Unleash Your Inner Secret Agent with This Spy Pen with Uv-a Thrilling Toy That Lets Childrens Write Invisible Messages Only Revealed Under the Pen Built-in Uv Light! Using Harmless, Tasteless Ink, It Creates Disappearing Text on Paper, Skin, or Fabric, Perfect for Spy Games, Treasure Hunts, or Creative Play. the Ink is Permanent Yet Washable, Ensuring Safe, Mess-free Fun. Ideal for Birthday Parties, Stem Activities, or Imaginative Play, This Pen Doubles as a Practical Highlighter for Everyday Use. a Must-have for Young Detectives, It Encourages Problem-solving & Creativity While Keeping Secrets Truly Hidden!