Produced by the Mine Akiyoshidai Geopark Promotion Council in Mine City. This is a set of 30 cards, each featuring an illustration on the front and an explanation of the highlights on the back, covering locations such as Beppu Benten Pond, Akiyoshido Cave, Nagato Copper Mine Ruins, Ebara Uvale and Village, and Suijin Park. The card size is large, approximately 19cm tall x 13cm wide, unlike standard trading cards. I received these in the displayed/distributed condition. There is no noticeable damage, but please refrain from purchasing if you are looking for a perfect item. Will be shipped via Yu-Packet Post mini.