Men's Stainless Steel and IP Black Spinner Ring with Vertical Brown Groove on the Middle Stainless Steel, IP Black IP Black Spinner Ring with Vertical Brown Groove Quality 316L Stainless Steel, is chosen for its durability, and anti-corrosive properties. Absolutely brilliant Stainless Steel, Wear this shiny stainless steel, simple but very classy and elegant The Inox brand is defined by superb quality, made with precision and only the finest materials and finish.