Newest Rays line of wheel nuts are there Rays Anodized Locking Extended Wheel Nuts. These extended "closed-end" wheel nuts are made from duraluminum, and are extremely light-weight (0.9 oz. each). Rays extended wheel nuts also feature one "special-groove" locking nut per wheel. These grooved nuts can only be removed with the specially designed socket that comes with each set. These wheel nuts are perfect if you want the extended wheel stud "look". Available in anodized red, blue, or black. These lug nuts will not work with extended wheel studs.