Removing and installing center lock wheels on your Porsche is, surprisingly, more complicated than doing the same with traditional wheel bolts or studs. It's all too easy to unintentionally slam the wheel into your brake caliper or rotor, chipping your wheel, caliper, rotor, or all three. This tool threads on to the wheel hub, and its, rounded tip makes it easy to slide the wheel over. Once the wheel is on, simply remove the tool and install the wheel nut. The Delrin material is durable and strong but nonmarring, and a cap is included to protect the threads. Keep it in your glovebox just in case.