The custom sized 25-1/8" x 12-7/8" (1-1/2" corner and Center Drain) is designed to fit the bottom of your sink. Please make sure you measure the dimensions of the sink bottom. As the gird sits around 1" above the bottom, the grids should fit the dimensions of sink at 1" up from the bottom, with some room around the grid. Their corner and drain location should also match. The sink protector is equipped with special silicone feet (extra spare feet also included). This soft feet would protect the sink perfectly without leaving any marks on the sink surface. This product is made of 304 Stainless steel material, which provides the best protections against rust. It is also DISHWASHER SAFE for convenient cleaning. Please remove the feets before putting into the dishwasher.