Build your outdoor kitchen one step at a time with the Big Green Egg Modular Nest System. Start with an EGG Frame, then add to your custom EGG display with Expansion Frames and a variety of beautiful and functional inserts. Build an outdoor workspace which can be tailored for size and style. Start now and add on at a later date. All inserts are standardized – the same insert will fit into the top frame and lower shelf frame.Includes One Expansion Frame and Connector PackCustomize with Inserts4 Levelers IncludedLower Shelf Frame Made of SteelTop Frame and Legs Made of Aluminum with Powder Coating