You will receive two pieces. These are sized differently, and appear to be mostly size 6. These rings are a little flexible, but will most likely not stretch to more than a size 8.
Ships quickly in a padded mailer, via USPS 1st Class with delivery confirmation or 1st Class International (please see http://etsy.me/LNi1MV for important international shipping information). Orders of $50.00 or more are insured free of charge.