These used nuts are unique in that they are heptagonal, they are seven sided lug nuts. Kyokugen nuts look like standard lug nuts, but the only way to remove them is with the special socket provided with the set. In addition to the added security, these nuts also weigh 50% less than stock lug nuts (0.9 oz. vs. 2.1 oz.) On a car with 4 lugs per wheel, this can save you more than a pound! more with 5 lugs!
these are the polished chrome finish