1/2" x 1/8" Lavalock High Temp Nomex BBQ HT gasket smoker seal, self stick grey 1/2 x 1/8" Grey Model # GL-1/2 DuPont(tm) Nomex HIGH OPSY blended fibers, flame retardant, more dense than other similar gaskets LavaLock Proprietary self adhesive, press and stick Ultra Hi Temp Self Stick High temp Pro gasket (door & lid sealer) more dense than others Quick ship from the BBQ gasket pros