This is a gunda joint ring. Authentic, gently used item, size 3. Customized to have a longer chain, just like the one Hyde used. The part that wraps around the finger is now a triple band, making the size looser. It's looser than a size 3, but slightly tighter than a size 4, so I'd estimate it's around size 16-18 (Japanese ring size). I like it a lot and am hesitant to sell it, so I might take down the listing.