Weber accessories are made to provide the same durable performance as our grills, so grilling can be a success every time. Flip-up sides allow the easy addition of briquettes for indirect cooking. Replacement hinged cooking grates, are made of heavy, bright nickel-plated steel. Grates have curved handgrips that can hang from kettle handles. Fits 18-1/2-inch kettles. The grate itself measures 17-1/2-inch in diameter to sit appropriately in the Weber kettle grill as designed.