A trailer hitch is a device attached to a vehicle that allows it to tow a trailer or other load. It typically consists of a receiver, which is a square tube that accepts a hitch ball or other towing accessories. Trailer hitches come in various classes, each designed for different weight capacities, making it essential to choose the right one for your towing needs. When using a trailer hitch, it's important to ensure that both the vehicle and the trailer are compatible in terms of weight and size. Proper installation and maintenance are crucial for safety. Accessories like safety chains and hitch locks can enhance towing security and stability.