Benefitting from a hard-wearing and robust stainless steel construction, you can rest assured that the Insinkerator Extended Sink Flange will be providing your kitchen sink with a lifelong product. A sink flange is a metal disk which fits into the drain hole at the bottom of the sink, and it holds up the drain to the sink. Features and benefits: Specially designed for use with thicker sink materials ranging from 19mm – 44.45mm Suitable for Ceramic and Belfast sinks A durable stainless steel construction Compliment your InSinkErator UK food waste disposal unit Suitable for thicker sink styles The Insinkerator Extended Sink Flange has a strong and durable stainless steel construction which is suitable for use with thicker built sinks such as: Belfast, Butler, Granite and Ceramic.