XtremepowerUS 7/8" Flexible Head Oxygen Sensor Wrench Remove Install Auto Repair Installer Car Flexible Head Curved Handle Designed for all oxygen sensors with 7/8 inch(22 mm) hex Ford Contours, 4.6L and 5.4L Ford modular engines, 7/8" and 22mm knock sensors used on mid-sized trucks, SUVs and vans Quality Assured