The stainless steel cooking grids with Napoleon's iconic wave grid pattern mentioned here are designed for Prestige® 500 Gas Grills. These cooking grids are made of stainless steel, which is known for its durability and resistance to rust and corrosion. The wave grid pattern helps to provide better heat distribution and sear marks on your grilled food. If you have a Prestige® 500 Gas Grill and need to replace or upgrade your existing cooking grids, this set of two stainless steel cooking grids would be an ideal choice. They are easy to clean and maintain, making them a practical and long-lasting option for your grilling needs.