The RAYS FORMULA lug nut is an unique lug nut that involves two keys to remove each lug nut. The top cap of the lug nut uses a special hexagon wrench to remove it. Once the cap is removed, the lug nut can be accessed with another special hex key. The two piece design is very strong and features a 60 degree taper seat and 28mm length. Lugs are available in 12x1.25 and 12x1.5 threads and come in red and blue finishes. These lug kits include 20 lugs, hex adapter, hex wrench, and 20 aluminum caps.