Rusty Metal Floating Shelf, Brooklyn Bridge StyleThe shelf is made of wood and MDF with special metallic paint. Rust appears with the help of a special oxidizing agent. No visible screws and support. Made specially to you, coming with mounting hardware. No recommended with ventless fireplace. The rust process is not controlled, so the color of the shelf may differ from the photos shown. But if you have any preferences, just write to us. Materials: wood, MDF