There are basically 3 types of Towbars.
Fixed ball – These are the standard and normally the cheapest. Does the job great.
Detachable – These look the neatest when not in use as they can be removed. Many newer dearer saloon car drivers choose these. However if you don’t remove them, somebody else might! theft can be a problem.
Retractable – Look nice and convenient. These swivel out of the way when not in use leaving little or nothing to be seen. The swivel action may be manual or electrically driven. The model below is made by Brink, a leading manufacturer of Towbars