Together with the Weber Q Trivet the convection tray transforms your Weber Q from cooking in barbecue mode to oven mode in seconds. The trays are engineered with vents designed to circulate the heat above, below and all around the food. No more fiddling with foil, no fuss, just great food. Sit your trivet inside the convection tray, pop the food in and close the lid. Your Weber Q has now become a convection oven that’s cooking perfectly.