... 40M length 3.Environmentally-friendly Super aluminium foil Anti-static bubble insulationThis is a new environmentally-friendly ... only has good insulation, heat reflection & insulation and anti-radiation functions, but also has good moisture-barrier, ... to install; Heat reflection, heat insulation, sound insulation, anti- radiation, anti- vibration, and shielding; Moisture, barrier, sun-proof, waterproof ...