I bought this for myself for Valentine's Day this year. There is nothing inside. It is an empty box. (Please see the 3rd photo.) It has a very beautiful cosmic pattern, so I decided to sell it to someone who likes space. It is 6 cm thick, and the price takes into account the shipping costs. Please understand. I plan to ship it in an OPP bag, wrapped in paper. If you would like reinforcement such as a cardboard box, there will be an additional shipping fee, so please consult me before purchasing.