Good to have if you are running aftermarket rims. Fills the gap between centre of rim that fits over hub. Installed on a 2015 Subaru Impreza Hatch. Inner diameter perfect. No play or slippage. Outer diameter cud be a mm or 2 bigger for perfect fit.
Pros
Was exactly what I needed and needed fast. Was delivered overnight. Awesome job.
Cons
The MIKKUPPA brand might not be as reputable or well-known as other manufacturers, which could make some consumers hesitant to purchase their products