Temperature temperature postcard - sweet load

Cat, is my sweet load! Most like them one by one depends on me, though heavy but very willing! Like them to accompany (disturb) with (chaos) I work, eat, sleep! This section postcards using a special temperature coating, cats at room temperature below 29 degrees will be black, through the palm of the hand temperature slowly let the cat appear Yo! https://youtu.be/8mbfZ2w1dgQ Paper / paper card + temperature coating Thickness / 200P Size / 16x18cm Manufacturing / Taiwan Illustration / Lasa Origin / manufacturing methods Taiwan / printing