Made of heavy Flav-R-Cast iron, these double sided cooking grids ensure optimal heat retention and the ultimate in grilling performance. Remember, cast iron takes care and delivers exceptional results. Always season and care for your cast iron cookware. 2 cooking grids. Fits Crown 10, 20, 40, 90 (2008-2011) and Signet 20, 70, 90 , 320, 340, 390 (2007 and newer).