"Kazu Cards" Purchased new approximately three years ago. I didn't use them much, so they are in relatively good condition. There are some minor scratches and stains due to home storage. I have included photos of the noticeable stains. The outer box has scratches, and the instruction card has creases. Please purchase only if you understand that these are used items. #Kumon #Kumon_K #Book #Nature/Mathematics Type...Kazu (Numbers)