This set of postcard products takes the image of the Beijing 2022 Winter Olympics 12 competition venue as the main design element, adopts a brand-new integrated molding special process, and superimposes colors of different shapes and heights on the base material according to the picture of the artwork, resulting in a three-dimensional effect of high relief. Stop printing the wrong version of self-service postage label, a set of multi-dimensional 3D carved postcards for the Winter Olympics venues, a set of 12. A set of 12 venue postcards was issued after the countdown to Beijing 2022 Winter Olympics 100, and 150 sets were sold in the theme post office of 2022 Winter Olympics127. Fortunately, we got a set that day. We are newcomers and it is the first time to receive it.