High quality stainless steel with 10 hand/vent holes. The perfect solution to dress up those dull, plain steel and aluminum wheels. American Chrome’s top-quality front wheel covers are engineered to fit most popular wheel styles from all of the major wheel manufacturers. Stud-Piloted – Products designated for stud-piloted wheels typically have 10 lug holes. 5 of the holes are 1.25″ in diameter and have a slight taper that conforms to the shape of the lug nut. The other 5 lug holes are 1.75″ in diameter and are sized to slip over the existing lug nuts without removal.