1.Made of 304 stainless steel material.2.It is ,anti-rust and can be used for decoration for long time.3.Add variety to your staircase.Specification:Product Name: Decorative HemisphereColor: Silver ToneDiameter: 19mm/0.75-inchWeight: 16gMaterial: 304 Stainless SteelThickness: 1mm/0.04-inchPackage Content: 4pcs x Decorative Hemisphere