{HEAD ~ A coupling device} is provided for receiving and securing {TAIL ~ a ball}, the ball being attached to the structure to be coupled, such as a tow vehicle in the case of a trailer hitch application 
is provided for securing
{ HEAD ~ A coupling device } is provided for receiving and securing { TAIL ~ a ball } , the ball being attached to the structure to be coupled , such as a tow vehicle in the case of a trailer hitch application
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH