Rearview mirrors are essential on tractors and other agricultural machinery as they provide the driver with better visibility behind and to the sides, especially when large implements or trailers obstruct direct sight. They enhance safety by giving the driver an overview of the surroundings, reducing the risk of accidents involving people, animals, or other machinery.

There are several types of rearview mirrors, including standard mirrors, convex mirrors, and telescopic mirrors. Convex mirrors provide a wider field of view, while telescopic mirrors can be adjusted to offer extended visibility when the tractor is attached to wide implements or trailers.

The choice of a rearview mirror depends on the size of the vehicle, the implements being used, and the working environment. Convex mirrors are ideal for a broad field of view in tight spaces, whereas telescopic mirrors are more suitable for large implements that require additional visibility. It is also crucial that the mirrors are sturdy and durable to withstand demanding work conditions.