As pictured these rings are set to about a size 6 1/2. They can be adjusted to most any size. The dichroic glass is glue on with E-6000 glue. After glue has set for 2 days, each piece of glass is pressure tested. I want to make sure that each is glued properly. It is very difficult to photograph Dichroic Glass. The glass is much prettier than shown. Rings are $7.00 each