With orderly holes in the 69785 burner tubes, this kit provides sufficient heat for a perfect grilling experience. Material:Porcelain Steel (Flavor Bar ), 304 stainless steel (Grill Burner Tube ). Size: Flavor Bars:15.3" × 3.5" × 2.5",Grill Burner:17-15/16" L,Crossover Tube:10 /2" L.