I am so disappointed with this thing. To Blanco, PLEASE NOTE THIS IS NOT A TRUE DISPOSAL FLANGE. It's a decorative plastic piece that goes on top of an existing disposal. Installing it just makes it stick out and the water from the sink does not fully drain and pools around it. I bought it for our new home build and by the time the plumber had time to put it in we were outside our return window. So disappointed I spent over $150 for the matching strainer and disposal only to have to rip it out and go with the stainless steel.