The CTA 2-pc Wheel Hanger Set - M12 x P1.25, No. 8871, is designed to thread into the wheel hub on vehicles that use lug bolts instead of wheel studs for easier alignment and installation of the wheel onto the hub. The heavy duty finish and concave design at the center of the tool ensures the wheel does not slip off the hanger. The Wheel Hanger Set makes servicing a wheel easier, especially if the vehicle is equipped with painted calipers that users wouldn't want to scratch, the company says. The set includes a hole at the end for use with a screwdriver or any bar for turning.