Big Green Egg Grill & Smoker Cast Iron & Half Moon Grids - Authentic Big Green Egg Parts & Accessories for the Serious Big Green Egg Grill & Smoker User - Satisfaction Guaranteed (Medium - 15") These Grates are Designed ONLY for BIG GREEN EGG GRILLS & SMOKERS - THEY MAY NOT FIT OTHER BRANDS - Authentic Big Green Egg Grill & Smoker Accessory Produces superior heat surface for searing meat Heavy duty cast iron is durable and easy to clean Available in 10", 13", 15", 18" and XL 1/2 moon design Perfect replacement or to use as your primary cooking surface