Marbles are small, shiny, round balls made out of different materials like glass, clay, or even metal. They come in many different colors and sizes.
When you hold a marble, it feels smooth and cool to the touch. Marbles can be used for all sorts of fun games, like rolling them on the ground or trying to knock them through a little hoop.
Some people collect marbles because they can be very pretty and unique. Some marbles even have special designs or patterns inside of them.
Overall, marbles are just fun little balls that people like to play with and collect.