1. quality and practical: thickened aluminum foil layer, scratchresistant, punctureresistant, tearresistant, flameretardant, waterproof, and moistureproof; Closedcell foam structure made of density rubberplasticcotton blend, nonabsorbent, strong loadbearing capacity, durability, toughness, and resistant to deformation. 2. Versatile for all seasons: This insulating cotton can reduce heat loss in winter and lower temperature in summer, helping to keep your home warm in winter and cool in summer. 3. Sound insulation and noise reduction: 3D stereo soundproofing, closedcell doublelayer composite structure, sound insulation and absorption, outstanding shock absorption and noise reduction for walls, doors, and ceilings. suitable for band rooms and recording studios. 4. Easy installation: The backing is equipped with strong adhesive, enabling it to be applied by simply peeling and sticking without the need for extra tools or materials. The insulation pad can be cut to the needed size to meet different requirements.