Two piece, enamel coated steel cooking grate set for Weber Genesis Silver B/C, Platinum/Gold and Spirit 300 Series (model years 2007-2017) model gas grills. 50/50 Split, with each section measuring 17-3/8" front to back X 11-3/4 inches wide, for a total overall set width of 23-1/2 inches. Genuine Weber Part.