These stickers are from "Nice Day" series designed by a Japanese artist Tomatomayu known for her "hokkori" ("heartwarming" in Japanese) illustrations.  Great for your planner and journal decoration.  These are some common food for lunch in Japan; ramen noodles, onigiri (rice ball), bento (little everything in a bento box), pizza, soba noodles etc.

* Size: 17.5cm x 9cm (6.8" x 3.5")
* Illustrator: Tomatomayu
* Made in Japan