General description Crafted from double reflective aluminum foil and wear-resistant PE woven fabric, the VEVOR Double Reflective Insulation Roll is designed to efficiently reflect sunlight and block heat transfer. With a thickness of 6.5 mil, it helps maintain a comfortable indoor temperature by keeping spaces cool in summer and warm in winter. Technical specifications Dimensions: 48 in x 250 ft Thickness: 6.5 mil Material: Double reflective aluminum foil and PE woven fabric Installation Easy to cut and install to fit various sizes and shapes. Can be folded for space-saving storage when not in use. Usage Ideal for windows, garage doors, RVs, houses, roofs, and more. Effectively blocks heat and provides insulation in various applications. Other information