Custom fit for each Strictly Sinks model, these dishwasher-safe sink grids keep the bottom of your sink scratch and dent-free. Unlike many other sink racks on the market, ours is unique and does not have a cavity under the rubber pads to allow for gunk and grime build up. In other words, this sink rack is more hygienic and cleaner that 90% of the similar products on the market. Additionally, our sink grids are made from stainless steel and will never rust. At least once a week, wash your stainless steel sink rack, especially the bottom because that is where droplets of water can rest as well as food particles.