Eatech Black Looking pen with Blue ink disappear Gel Pen  (Ink Color - Blue)

Black look Invisible Ink Disappear-ing BALL PEN writes in blue color on paper INK DISAPPEAR SLOWLY... Features: 1. It writes as smoothly as common BALL POINT pen. 2. The ink will automatically disappear without any remains. 3. Paper-saving and environmental-friendly. You don't need to 4. You can also leave some secret message or important information to some specific person without being discovered. Note: Do not write with pressure as tip marks may leave after ink disappear. Package include 1 x Magic Invisible Ink Marker Disappearing Pen