This 12N 7 pin plug from Maypole features a double grommet which is provides an alternative way of wiring independent lighting feeds on a trailer.12V N type 7 pin plastic plug with double grommetDesigned to conform to ISO 1724Double grommet is an alternative way of wiring independent lighting feeds on a trailer2 x 10.2mm diameter holesIf unsure about your caravan or trailer wiring consult your caravan dealer or auto electricianDimensions: 4.1cm (H) x 5cm (W) x 9.9cm (L)Weight: 0.062KgRecommended activity - caravanning / camping / driving