Reflective Foil Insulation Roll Double Bubble Roll – 39 inch x 115 ft per Roll **Quick US Delivery** This can be used in a varitly of applications including window insulation, heating and cooling ducts, insulating garage doors or simply as a sun/heat block for your car windshieldUsage: roof,wall, floor for buiding insulation, protective air conditioner, water heater, water pioe, material for cooler bag, car sunshade,etc.Insulation is made of a single or double layer of industrial grade polyethylene bubbles sandwiched between layers of highly reflective aluminum foil that blocks up to 97 % of radiant heatDim: 3.3 ft x 115 ft (380sqft) Ships FAST and FREE Feel free to ask any questions regarding to this item