$7.99, located in Covina, California, USA (917**), item #313621597295
7 Way Trailer Light Adapter Plug Connector Round to 4 Pin Flat RV Boat + Flat 4 Way Vehicle Side Boat Trailer Plug Tester. Flat 4 Way Vehicle Side Boat Trailer Plug Tester. Qty: 2pc - 4 way Trailer Light Tester.