This matte black garbage disposal decorative flange is compatible with most US standard garbage disposal metal collars, ensuring the inner diameter of the metal flange is between 3.3 inches and 3.43 inches. Made of durable ABS material, its matte black finish can match black kitchen sinks or black faucets, serving a decorative purpose. It features a detachable strainer and stopper, making it easy to clean with liquid soap and water. The entire structure is made of plastic with the same color and material throughout, resistant to fading, peeling, or cracking, as well as corrosion, ensuring long-lasting use. Installation is simple—no tools required, and there's no need to replace the metal flange; just cover it vertically over the metal flange.