VEVOR Double Reflective Insulation Roll, Double-Sided Aluminum Foil Radiant Barrier, 6mm 48 in x 100 ft, Dual-Layer Air Bubble Heat Reflective Shield, Thermal Insulation Roll for Garage Door Window RV Roofs Superior Thermal Insulation Premium Material Easy Installation Tips Multiple Size Options Versatile Application Free to Cut Thickness: 0.24 inch / 6 mm,Thermal Reflectivity: ≥95%,Item Quantity: 1 Roll,Item Model Number: PE18-6,Material: Aluminum Foil + Air Bubble + Air Bubble + Aluminum Foil,Product Dimensions: 4 x 100 ft / 1220 x 30480 mm,Net Weight: 20 lbs / 9 kg