6-Spline tuner style chrome plated open end lug nuts 1/2"-20 thread size with key. The hex key has both 3/4" and 13/16" head. The lugs are heat treated to achieve extra strength. Our application guide page will answer most of your application fitment questions but do not hesitate to ask us. Sold in optional 16 piece with key, 20 piece with key and 24 piece set with key. Add extra keys from accessories on the right, if needed.