Baby Kumon Interaction Cards ①-④ Heavy Kumon Advanced ①② A set of interaction cards. All cards are present and there is no graffiti. Only the pig card has been chewed on. Some cards are bent, please check the photos. There are marks from being put through rings, but I think they are still strong enough to be used with rings. Please purchase if you understand that these are used items that have been used by a child.