Grids are a wire mesh that fits in the bottom of your stainless steel sink to protect the sink from scratches. Grids are manufactured for specific sinks and are not universal. Cygnet Stainless grids are made from the same 304 stainless steel as the Cygnet Stainless sinks and faucets. They are solid stainless and not covered by clear coat or other covering to make them look better on install. Coatings peel as shown on the attached pictures. Cheaper grids may also have uneven and sloppy welding as shown.
If you use the rubber or palstic pads that lay on the sink bottom make sure you lift them and clean the sink under the pads at least once a week to prevent rust marks and stains.