Fire extinguisher ball

When the ball is thrown into the fire, white smoke immediately rises, filling the air. Within seconds, the fire is extinguished. What exactly is this ball, and how does it work? It's known as a fire extinguisher ball. This ball contains fire-extinguishing chemicals in the form of dry powder. Simply throw the ball into the source of the fire, and its internal pressure will cause an explosion that releases the dry powder, quickly extinguishing the fire within a 1.3-meter radius.