beofinest silicone griddle mat for blackstone 28 in(not fit 28xl/pro), heavy duty food grade silicone griddle cover, griddle accessories for blackstone grill, all season protective cover (orange, 28 inch) orange 28 inch is up for auction in Patio, Lawn & Garden. The current bid is $2.00, 90% below the $19.90 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.