Hello. I previously purchased several Pollack Heavy Duty 4 Pole trailer wiring sockets and several trailer connectors to match. Turns out the trailer connectors all have 4 small silver connectors while they should have 1 small connector and 3 brass larger connectors. If possible I would like to send you some pictures of the connectors and perhaps I inadvertently purchase the wrong items but they were listed as compatible. Thanks for your help. Ron 847.875.2895