Black Flat Face Stainless Steel Masonic Rings for Men. Freemason Ring / Masonic Jewelry for Free Masonry Lodge Member View more Masonic Styles! - Search on Amzon for: C&D MASONIC JEWELRY Top Quality Black Masonic Rings 316L Stainless Steel - Back Band width: approx. 8mm Comfort Fit - Plain Band with smooth face. Design: Etched Freemasonry Icon. Back width is approximately 8mm. 316L is the highest grade of stainless steel used in the jewelry market. It is so good at resisting fade, rust, and corrosion, that it is used in architecture as well as in marine environments. It will not fade, change color, or leave stains on your body. It doesnt even require any maintenance to keep it looking new.