Initially, I thought the postcards would simply be packed in a resealable plastic, but each set came in a thick folded paper envelope. The front of the paper envelope was laser-cut with beautiful patterns that framed the postcard very nicely. I'm sad that the paper envelope I received came with a dent, which I don't think was caused by shipping, since the postcard sets were wrapped thoroughly with bubble wraps and no major damages were seen on the shipping box. A little flaw in the product itself, but the postcards weren't bent and were in great condition. The pearlescent finishing is gorgeous when you display the postcard under lighting – it's like the Instagram glitter filter in real life, lol. I love the illustration of each postcard – the details of each scenery, art and character tie back nicely to the MDZS story. Overall, I'm happy with the product.
P.S. The postcard has a funny smell, but I think it'll fade out with time.