NOMEX High-Temp Grey Felt Grill Replacement Gasket for Large Big Green Eggs. This Nomex® felt with adhesive peel & stick backing replaces the OEM wool or polyester felt gasket on your Kamado style grill. This felt is designed for high temperature applications and will outperform & outlast wool or polyester felt. Each unit comes individually packaged with instructions included. 3.4mes of felt in 1/8 thickness and 7/8 width (OEM Standard size) is provided, enough to outfit LARGE size Kamado Grill or Big Green Egg.