The classic Disappearing Ink prank in a squirt bottle! Squirt your shirt or a friend’s clothes to make a blue ink stain. In about 2-3 minutes the blue ink will fade away. Our Squirt bottle makes a temporary mess. Say a “magic” word and the blue ink fades away.Disappearing Ink is also a simple chemistry demonstration of thymolphthalein and carbon dioxide (air). The all-time favorite disappearing ink practical joke is back!Type: Tin Toy Practical Joke and Magic Trick - About 1 oz Blue Ink included - Safe LiquidCategory: Plastic Joke and Trick - For Ages 8 and up (Not for children under 3) China supplier:Email : fangzhengcn@hotmail.com Skype ID : chanceller819