[Material]: Constructed from durable PET with an aluminum plating process, this 2 mil thick mylar film ensures superior durability and performance. It's wear-resistant, waterproof, anti-corrosion, and anti-crease. [Exceptional Reflective Properties]: With a surface engineered for optimal smoothness, this mylar film boasts outstanding light reflection capabilities, reflecting 92%-97% of light. [Versatile Thermal Stability]: Designed to withstand extreme temperatures ranging from -70°C to 150°C, our reflective mylar film excels in environments requiring heat management. Its thermal stability makes it ideal for maintaining consistent temperatures in grow rooms. [Optimal Size for Various Uses]: The roll measures 4FT by 50FT, perfect for large scale applications in outdoor grow rooms or indoor decorations. It can be easily cut to fit different shapes and sizes, adapting to DIY projects and setups. The reflective film can be secured in place using transparent tape, double sided tape or thumbtacks. [Easy Maintenance]: This mylar is also easy to clean, requiring only a simple wipe with a damp cloth to maintain its reflective surface. Enhance your horticultural endeavors with HFS(R) Horticulture Highly Reflective Mylar Film Roll, your premier choice for grow rooms and indoor gardening. Measuring 4FT x 50FT and 2 mil thick, this film is crafted from high-quality PET coated with aluminum, designed to provide exceptional durability and reflectivity. Its surface treatment ensures up to 97% light reflection, which is vital for accelerating plant growth by directing light inward and preventing it from escaping. The film's robust construction includes properties like waterproofing, anti-corrosion, and resistance to extreme temperatures, making it suitable for various climates and setups. Whether you're looking to enhance your indoor garden, insulate a space, or undertake a creative home project, this versatile mylar film meets all your needs. Easy to install and maintain, it promises to be an indispensable part of your gardening supplies or DIY toolkit.