Make from steel materials, ensures long terms durability and impressive for a dependable burn Crafted for Fireplaces grates in indoor fireplaces and outdoor pits, it prolongs burn time and maximizes heat output Designs to fit most fireplaces, our Fireplaces grate retainer promotes airflows, maximizing heating efficiency and reducing air output Our Fireplaces grate with retainer features a Meshes design builted to enhances airflows and promote combustion : None assembly is need, just place it on your Fireplaces grate and a cleaner space