Why are muduguards used over the rotating wheel of the vehicles?

[phurpa9]

Why are muduguards used over the rotating wheel of the vehicles? This technic is used in my village but i dont know it.

 

[rob50]

lol mudguards are used over the rotating vehicles to protect the body from dirt and mud being sprinkled to our body from the wheels.

 

[Dwaph]

Mud guards are very important to use on cars. They help keep it clean and working smoothly. I have some on my car.