Okay, kiddo. So a riot helmet is a special type of helmet that is worn by police officers when they are dealing with big crowds of people who might be angry or violent.
The helmet is made to protect the officer's head and face, and it's usually made out of a strong material like hard plastic or metal. That means if someone tries to throw something at the officer's head, the helmet will absorb the impact and keep them safe.
The riot helmet also has a special face shield that can be moved up or down to protect the officer's face. This is especially helpful if someone tries to spray the officer with something like pepper spray or if there's smoke or gas in the air.
Finally, the helmet has a special chinstrap that keeps it securely in place on the officer's head. This is important because if the helmet falls off during a riot, the officer could be seriously hurt.
Overall, the riot helmet is an important piece of equipment that helps keep police officers safe when they are dealing with big, angry crowds of people.