I have a pair (two spacers) of H&R wheel spacers. Each spacer is 15 mm thick, and the kit includes longer studs to replace the OEM ones. I powder coated them black so they wouldn't show behind my dark color wheels, but in the end I only needed 5 mm spacers. I only used them for test fitting them once and they have been sitting in my garage ever since. New price was $150 (plus the powder coating), asking $100.