Towing-Socket-Tester-7-Pin-12V-Sealey-TST97-Quick-&-simple-test-of-12 Volt-7-pin-N-type-sockets-Supplied-with-5mtr-7-core-cable-&-12 Volt-7-pin-N-type-plug-Six-LED-display-to-test-tail-lamp-stop-lamp-&-fog-lamp-circuits-from-drivers-seat-Towing-Socket-Tester-7-Pin-12v