Protecting the world's finest wheels and tires from theft since 1964. McGard manufactures wheel locks in the USA to meet or exceed O.E.M. standards for safety and durability. Presently, McGard is an Original Equipment wheel lock supplier to most automobile brands around the world. These easy - to - use, one - piece wheel locks function like regular lug nuts, but require a special key tool for installation and removal. The computer generated key designs allow for an infinite number of key patterns. The extra narrow pattern groove on the lock resists the intrusion of removal tools into the pattern. Every McGard wheel lock is fully machined from restricted chemistry steel made specifically for McGard and through - hardened for its unsurpassed level of security. For use with steel or aluminum wheels with exposed decorative lug nuts that have a radiusball shape at the bottom. Includes four black plastic screw on decorative lug caps. This product may contain globally sourced materialscomponents.