Agency Power's closed end lugs nuts are designed for those seeking to add the finishing touches to their vehicle. The high quality lug nut set is a great addition to any vehicle for added style. The thin walled lug nut is smaller which allows it to fit wheels with a smaller diameter lug hole . As well as being lighter then most OEM wheel lug nuts, they are designed without sacrificing durability thanks to the hardened steel material. As an added bonus, the Agency Power lug nut kit includes a proprietary 19mm socket adapter providing you security to your vehicles wheels much like a wheel lock does.