Together With The Trivet, The Roasting Tray Transforms Your Weber Q Grill From Grilling Mode To Oven Mode In Seconds. The Trays Are Engineered With Vents Designed To Circulate The Heat Above, Below And All Around The Food For Perfectly Even Cooking. Creates Indirect Heat For Roasting Sturdy Aluminum Construction Pack Of 10 Roasting Trays Fits Q 2800N+ Gas Grill