VEVOR Double Reflective Insulation Sheet, 16PCS Double-Sided Aluminum Foil Radiant Barrier, 6mm 24 in x 4 ft, Dual-Layer Air Bubble Heat Reflective Shield, Thermal Insulation Rolls 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: 16PCS,Item Model Number: PE19P-6,Material: Aluminum Foil + Air Bubble Film + Air Bubble Film + Aluminum Foil,Product Dimensions: 2 x 4 ft / 610 x 1220 mm,Net Weight: 6.61 lbs / 3 kg