Features:
1) Write invisibly secret messages, security markings etc. and only when you shine the light on the message you will reveal the secret behind.
2) The spy pens have the UV light installed in...
Invisible Ink Pen 12 PCS, Spy Pen with UV Light, Magic Marker for Secret Message,Treasure Box Prizes for Classroom,Kids Party Favors, Christmas,Thanksgiving,Halloween for Boys Girls Goodie Bag Toys...
Invisible Ink Pen 24 PCS, Spy Pen with UV Light, Magic Marker for Secret Message,Treasure Box Prizes for Classroom,Kids Party Favors, Christmas,Thanksgiving,Halloween for Boys Girls Goodie Bag Toys...