Lens ring has been used, but it looks and works good. It has minor scratches from use. I don't see any dents. It works good. Threads are not damaged, or bent.
Holder ring is 17mm OD (for series IV upper threads) . Please note that adapter will be mailed as pictured, with original box. It is missing 24mm retaining ring, you get bottom part of the hodler only.
Shipping is free within USA and $10 worldwide.