These Shinkansen discontinue or reduce in-train sales.
Hayabusa,Hayate,Yamabiko,Komachi,Tsubasa,Toki
Please buy foods and drinks at the train station.
At the train station you can buy the Bento.
Those are lunch boxes.
There are many kinds of them.
There is also a bento box for children.
There are also specialty bento boxes at many stations.