Add up to two extension racks to greatly increase your cooking area. One rack adds over 30% more cooking area and two racks adds over 60%. Made of porcelain-coated steel. One per box. Shown with main cooking grates (not included) Comes in specific models for Oval XL 400 & Kamado (#332), Oval LG 300 & Kamado (#315), Oval Jr 200 (#312).