MMRM Invisible Ink Pen with UV Light Magic Marker Secret Message Spy Pen

MMRM Invisible Ink Pen with UV Light Magic Marker Secret Message Spy Pen

• It writes with invisible ink made of special high-brightness ultraviolet visible compounds
• This means the ink is completely invisible under normal light
• Near the visible spectrum of light. Flip the pen over, shine the light on the spot where the ink was used and your hidden message will be illuminated
• Length: 13cm
• Note: includes 3 * Button batteries