These hub rings fit perfectly. They are made of high quality aluminum and are accurately machined. There is a slight chamfer (taper) to make the ring easier to insert into the wheel and another chamfer to make the ring easier to install over the car's hub. That is a nice touch.The rings are a snug fit into the wheel and onto the car's hub. The wheel/tire runs true even at very high speeds. I used these on a race car. No issues at 150 mph.I have two sets of hub centric rings from this vendor in different sizes. Both are the same high quality parts.