Disney Infinity is a video game. That's about all I know. At least in America, it seems that there are some figurines and such that are used to import characters into the game, but in Japan, all I've seen are these cards. One card came packaged with a chocolate wafer snack similar to Bandai's wafer cards for Evangelion and other franchises. I don't know how or even if they interact with the game here in Japan.
These cards were sold from late 2014 into 2015.