Fire hydrants are essential devices used by firefighters to access water quickly during emergencies. They are typically found on streets and are connected to the water supply system. When a fire breaks out, firefighters can open a hydrant to obtain the water needed to extinguish the flames. These bright-colored structures come in various designs and sizes, depending on local regulations and water pressure requirements. Fire hydrants are usually painted in colors that indicate their flow rate, helping firefighters determine how much water they can expect. Regular maintenance ensures that they function properly when needed, making them a vital part of urban safety.