... doodle on paper, clothes, sheet, furniture, wall etc 3. dispearing in 12hours Product Features: 1.dispearing ink2. Able to doodle on ... paper, clothes, sheet, furniture, wall etc3. dispearing in 12hours•Magical Pen with Invisible Ink•It writes as smoothly ... as normal pen, portable to take•Great for writing secret messages•Comes in a gift Box•Pen Length: 142mm/ 5.59in•Color ...