GrillGrates deliver more control and flexibility to charcoal grills, making them the ultimate upgrade for your PK Grill. 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.