Kaper II SS-2252R-825 Polished Stainless Steel Class 8 Truck Rear Axle Dual Wheel Simulator Set (22.5" x 8.25" 10 X 1.5 Lug, 11.25" Bolt Circle, 5 Hand Hole) Kaper II, the original simulator, OEM approved Brilliant shine Crafted from the finest 301 stainless steel Easy care free maintenance Soap and water is all that is necessary to maintain a brilliant shine