A trailer hitch is a device that is attached to the back of a vehicle, typically a car or truck, in order to pull a trailer. It consists of a ball mount and receiver, which are connected by a frame-mounted hitch assembly. The ball mount is a round base with a shank protruding from it, while the receiver is a square opening that accepts the shank of the ball mount when inserted into it.
The trailer hitch allows for the attachment of a trailer to the vehicle by connecting the ball mount to the trailer's coupler. The weight capacity and type of hitch required depend on the size, weight, and type of trailer being pulled. Trailers can range from small utility trailers used for hauling equipment or materials, to larger recreational vehicles (RV) that serve as a home away from home while traveling.
In summary, a trailer hitch is an essential component in pulling a trailer behind a vehicle and allows for safe and efficient transportation of goods or people.