The Grid Kitchen Sink Drain functions to prevent food waste and debris from getting clogged in the drain and obstructing the flow of water. This basket strainer is constructed from stainless steel, which makes it robust and ensures reliable use for years to come. It has a glossy stainless steel finish, which gives it a lustrous look and complements its overall sturdy construction. This basket strainer is resistant to rusting, tarnishing, chipping, and scratches, which makes it last for a long time. It has an open/ close stopper that seals tightly while cleaning the debris and opens to allow the drainage water to flow. The Stainless Steel Strainer from Kraus is safe to clean in a dishwasher.