The product is an original left window regulator switch for an Audi A4 Convertible (8H7, B6, 8HE, B7) from 2004. It is a B1 quality used part that has been tested, with a manufacturer part number of 8H0959851B and a transmission code of GHZ. The switch is designed for the specific Audi model and is suitable for vehicles with a V CABRIO motor type and a BDG engine code. It is a genuine Audi product, making it a reliable and compatible choice for those in need of a replacement window regulator switch for their Audi A4 Convertible.