Gothic Skull Pattern with Large Black Gem Center Stainless Steel Ring (Sold Individually) Stainless steel is corrosion resistant and will not tarnish. It is a very strong and very durable metal. Material: High Quality Grade 316L Surgical Steel Comfort Fit - Contoured on the inside for a comfortable fit. Width Size: 27.5mm Wear it for any occasion! Exceptionally High Quality Jewelry!