The wrap-around Smoker Insulation Blanket is the newest innovation for keeping the heat in your smoker during extreme weather conditions and promotes very even smoking and heat consistency.These are one size fits all, so if you have a Big Chief Smoker, the Insulation Blanket will go all the way around the unit, and if you have a Little Chief Smoker, it will go around almost twice, with Velcro provided as a closer.Fits Big Chief and Little Chief Electric Smokers.