Drone propellers are essential components that enable drones to fly. They work by spinning rapidly to create lift, allowing the drone to ascend, descend, and maneuver in the air. Typically made from lightweight materials like plastic or carbon fiber, propellers come in various sizes and shapes, which can affect the drone's performance and efficiency. The number of propellers on a drone can vary, with common configurations including quadcopter (four propellers) and hexacopter (six propellers). Each propeller is designed to rotate in a specific direction, and the combination of their movements helps stabilize the drone during flight. Proper maintenance and replacement of worn propellers are crucial for safe operation.