Okay kiddo, do you know what a "flag" is? It's like a special piece of cloth with different colors and symbols on it that represents a group of people, like a country or a state. In Russia, they have different parts of the country called "subjects" or "regions" that each have their own flag.
Just like how you might have a favorite color or animal, each region in Russia has special colors and symbols that represent them. For example, the flag of Moscow has a big red "M" on it because that's the first letter of the city's name. The flag of St. Petersburg has a picture of a ship because that city is near the water.
These flags can be used in lots of different ways, like at big events or parades, or even just hanging outside buildings to show pride in where you're from. It's like a way for people to say "this is who we are and where we come from."
So, that's the basic idea! Each region in Russia has its own special flag that shows the colors and symbols that represent them.