Disks cut ecologically by a closed-loop water-jet by Pegasus Northwest of Kent, WA out of 1.5mm 6061-T6 grade aluminum. My set was professionally painted by Freebird Body & Paint out of Corvallis, Or. I have 3 more sets of unfinished disks available in the Corvallis area (I'm in Salem on the weekends too). $60 for a set of 4. I'll drill and rivet them to your wheel rings for an extra $20, plus a removal tool (a specific brand of putty knife) to pop them on and off to fill your tires. $30 for a brushed metal finish, or take them to an autobody shop to have them painted. That's me riveting on the finished disks. Mounted - it looks like an armored space car now And yes, my car needs a good washing.