Surgical Stainless Steel Oval Signet Ring Solid Back Flawless Finish 5/8 inch, sizes 5 to 10 Solid Back and Lower Profile For Great Comfort and Classy Look Excellent Quality Workmanship, with Perfectly Polished Shiny Finish 316L Surgical Steel wont corrode in harsh conditions and easier to Monogram & Engrave, than 304 Steel from the competition Available in Half Sizes with Accurate sizing High Grade Hypoallergenic Surgical Steel