Original owner. 30mm Aluminum (4.3 ounces for the pair) High (1.035" above rail) Like new condition aside from some dust. Exceptional rings. My favorite. The only (non-plastic insert) ones that haven't marked a scope. Will comfortably clear a HV barrel and mirage shield on Borden/BAT removable rails. Reason for sale: going to a different height. Thanks for looking, $140 plus $8 USPS small flat rate.