Thank you for viewing. This is a set of 4 mysterious 3D objects (3D objects) supervised by Professor Kokichi Sugihara, a renowned figure in computational illusion, and 3 transparent 3D objects (papercraft). You will need to prepare a mirror and glue (adhesive tape) at home. I bought these immediately after they were released, but I was satisfied with just having them and never opened them. I would like to pass them on to someone who will cherish them. Thank you very much.