A high temperature resistant braided glass material, woven into a sleeve and heavily coated with 100% silicone rubber with 304 stainless mesh outer covering, EXO Sleeve provides the ultimate in heat insulation and protection from direct heat up to 500F. Silicone glass sleeve (DEI Fire Sleeve) surrounded by 304 stainless mesh outer coating Allows direct contact to heat source Highly abrasion resistant Provides air flow around sleeve Perfect for insulating wiring, hoses, oil / brake / transmission lines & more Size: 1 inch x 36 inches