ApplicationCompatible for Opel Signum 2003-2008 Hatchback compatible for Opel Signum 2003-2017 Hatchback compatible for Opel Vectra C 2004-2017 Estate compatible for Opel Vectra C 2004-2017 Saloon compatible for Opel Vectra CC 2002-2009 Saloon compatible for Opel Vectra C C 2003-2009 Estate compatible for Opel Vectra C GTS C 2002-2016 Hatchback compatible for Opel Vectra C GTS C 2002-2017 HatchbackSpecificationQuantity: AS picture shown OEM number: VKBA6507, 1603255,1603295, 93178661, 93186388 Placement on Vehicle: Front Inner Diameter: 31mm Outer Diameter: 137mm Width: 85mmNote-Professional installation is highly recommended (No Instruction Included) -For any needs please contact us.