At TIONEER, we use surgical grade stainless steel for our massive selection of metal jewelry. Surgical grade stainless steel is abundant in our collection due to its hard body, incredible resistance to corrosion and tarnish. Stainless Steel Nautical Fleur de Lis Compass Chevron Pattern Biker Style Polished RingSurgical Grade Stainless SteelEngraved Nautical Fleur de Lis Compass DesignApprox. Top Dimension: 0.59 inch x 0.59 inch (15 mm x 15 mm)Standard Fit WearPolished Finish Style