Specially designed to fit the long petrol injectors used on the Jaguar Land Rover models listed equipped with the 5.0L V8 petrol engines. Jaguar applications include: Jaguar X150, XK Series, X250(XF), XJ models (V8 5.0L petrol engines).Land Rover applications include: Discovery 4, new Range Rover, Range Rover Sport (V8 5.0L petrol engines). Equivalent to OEM 310-197. The angled slide hammer shafts gives improved access when working on the rear most injectors.