Underlying its utilitarian appearance, you will still find all the hallmarks of an Urban Accessories hand crafted tree grate – crisp edges, excellent surface quality and overall attention to detail. Worth noting, the Fan is available in an extremely broad range of shapes and sizes… Conforms to ADA Accessibility Guidelines. AVAILABLE MATERIALS: 100% Recycled Grey Iron, Ductile Iron, 100% Recycled Aluminum, Silicon Bronze, Nickel Bronze. AVAILABLE FINISHES: Raw Natural Finish, Rust Conditioner (Grey and Ductile Iron Only), Polyester Powder Coat, Liquid Coat (Available upon request), Brush (Aluminum, Bronze and Nickel Bronze Only), Polish (Aluminum, Bronze and Nickel Bronze Only). Fan comes as a square: 3'-6", 3', 4'-6", 4', 5', 6', 8'; Round: 3', 4', 5', 6'; Rectangle: 2'x3', 3'x5', 3'x6', 4'x6', 4'x8', 5'x8'.