Use the invisible ink spy pen set to send secret messages to your friends. The invisible ink only shows up under the UV light on the pen cap.
'¢ Hide your writing with the invisible ink pen
'¢ Use the UV light on the pen lid to reveal your secret messages
'¢ 2 pens in each pack. One red, one black.
'¢ Requires 3x LR41 batteries (included, not replaceable)
'¢CDU 12 pcs | Carton Qty: 48 pcs
'¢ Age: 3+