The N195F05 CCI wheel simulators are manufactured using quality T304 stainless steel. Simulators fit 19 1/2 Inch diameter wheels / 8 lug / 5 hand hole for the listed applications. Bolt on retention is quick, no lug nut removal required. Product Features:Quality T304SS Construction For Long Lasting Durability And ShineBolt On Retention Without Lugnut Removal For 15 Minute InstallationLimited Lifetime Warranty