These are 20mm adapters that I used when I was running Lexus sc430 wheels.
Like new, all the hardware to run them. I had wobble bolts, just felt a little safer with the adapters and needed them for better fitment.
150$ + shipping obo.
Pm if interested.
They worked well for me. I made the trip to sowo and back on them as well as used them all summer. I had thought about adding a lip by welding a piece of pipe inside but that was before I sold the wheels. If it was a necessity I think it could be easily made wheel centric. But it didn't bother me at all.