GrillGrates deliver more control and flexibility to charcoal grills, making them the ultimate upgrade for your 18” Weber Kettle. They act as a flame shield allowing more direct grilling at higher temperatures. GrillGrates for charcoal grills are used on top of the existing surface. GrillGrates are reversible interlocking panels, giving you two grilling surfaces; rails up or on the flat side. Constructed from hard anodized aluminum, GrillGrates will never rust. Made in the USA. The GrateTool is made in China. Set Includes: (2) radius cut 13.75” GrillGrate panels and (1) standard 13.75” GrillGrate panel Covers 90% of the grilling surface Designed for the 18” Weber Kettle and all 18.5” diameter grills Includes GrateTool and User Guide