16" D.O.T. Liner 4 Hand Hole Polished Wheel Simulators by Phoenix USA. With 8 Lug Holes, Diameter: 16", Bolt Pattern: 8 x 6.5", Stud Size: 9/16" x 18, Installation: Bolt-On, Material: Stainless Steel, Placement: Front, Quantity: 2 Pieces. Mounts to 16" diameter by 6" wide, dual-rear-wheel, 9/16" lug stud applications. Front simulators dish out and rear simulators are deep dished to contour with the wheel. Front pop out centers allow access to manual locking hubs.