Adding GrillGrates takes over-the-flame grilling to a whole new level on the S-Series grills with searing temperatures up to 700?F. Replacing three of your standard cooking grates, the patented GrillGrate aluminum design features raised rails on top, engineered to trap and concentrate heat. These rails create a perfect sear while the valleys capture falling juices, creating that sizzle for unparalleled over-the-flame flavor. The grates are also reversible, providing a flat top cooking surface for burgers, eggs or veggies. Constructed of hard-anodized aluminum, they will never rust so maintenance is a breeze. This kit includes a unique spatula designed to reach between the raised rails and below the food so turning food becomes a snap.