Valentine's color changing love match card

Don't underestimate the power and pull of thislove matchcard. It is funny, refinement, wearing well, innocuous to environment and human body and easy to use. You will never know how interesting it is unless you try it. It is also a best promotion gift. You can put advertisement on this small love match card. Whenever people hold this love matchcard they will also pay attention to your advertisement. How shall we know if you are a perfect pair? Now let me tell you how it works! Simply hold both of your thumbs on the black panel for about 10 seconds, then it changes color. Just take the color reference on the backside,compare with the sheet,then you can get the result. Black: Cold feel. Means there is no love feeling between you. Red: Just friend. Neither love nor hate. Just common friend!! Green: Infatuation. Blue: True Love. Customer's design are welcomed!