Item Description:

Features:
• Sign pen with invisible ink.
• It writes as smoothly as common sign pen with the same color (Blue color)when it is writing.
• The ink will automatically disappear in 5mins~24h without any remains or signs left.
• Paper-saving and environmental-friendly. You don’t need to worry about wasting your
   paper when you are practicing your writing and taking some unimportant notes.
• You can also leave some secret message or important information to some specific person 
    without being discovered.

Specification:
• Color: silver & black
• Material: plastic
• Pen length: 14cm

Package include
 

Item Pictures: