promotional gift - LCD stress control card

It is not easy to live in the competitive world.Many people are stressed.In fact,too much pressure do harm to your health. How can we know our mood status? This small stress measure card will easily know.Just put your thumb on the black liquid crystal panel for 10 seconds,then it will change color.Maybe red,green,blue,or just black.Each color indicates a different mood status.Just check the color and see if you are stressed.If you are,take the instructions on the backside for reference to settle this problem.