These lug nuts come in a set 20 lug nuts and an adapter Key. The unique feature of this lug nut is that they consist of 2 pieces. The top of the lugs spin freely from the tapered centering ring. This ensures a tighter and more precise hold than traditional lug nuts. It also lowers the chances of scratching your expensive wheels. Made of lightweight composite materials, these open ended lugs fit on standard studs and extended studs! Highly recommended to be used on street or track. Perfect for tuners who already have lug nuts but wants the extra security! 12x1.5 Bolt Pattern. These DO NOT HAVE LOCKS.