MATERIAL: We use high quality acrylic fiberglass material (Grade A+) which is moisture and heat resistant suitable to cover air vents, ducts or openings all around your house, apartment or office space. The vent covers are manufactured in the USA using high precision laser cut machine allowing us to cut to any shape or size to meet our customers’ needs MEASUREMENTS: Please order by the opening size. Listed product sizes refer to the duct opening measurements, outer dimensions in most cases are 1" in each direction. The thickness of the material is 1/8". The back of this grille is flat with no protrusion which makes it very easy to attach to the wall or ceiling without any scratches or sides of the cover hanging around. USE: These vent covers are perfect for walls and ceilings, not for floor use. SABA Home Decor offers a luxurious solution to unattractive, stamped-metal grilles and air vent covers that have always been a challenge for modern interior designers. INSTALLATION: the instructions are very easy and fast. You can visit our separate page on the website for more details. The installation requires only self adhesive silicone so you can attach the product to the wall or ceiling, no screws or any other hard work is required. On top of that it is maintenance free after installation as no corrosion, rust or mold will be formed on this material. SABA Home Decor is proud to present you with high quality home décor ideas and attributes. Our number one priority is your satisfaction with your purchase and your shopping experience. We are a small company that values our customers and prides ourselves on being the best choice to enhance the beauty of your home with our decorative vent covers, wall installations, wedding décor, baby room décor, etc. We have been working with builders, contractors, interior designers, and residential consumers for the last 10 years.