Description：Material: This air vent is made of ABS plastic, durable, impact-resistant, scratch-resistant, moisture-resistant, corrosion-resistant, nontoxic and odorless, not only has oxidation resistance but also has a more beautiful installation effect. No screws included.Advanced Advantage: The ABS plastic air vent is sturdy but lightweight, has smooth edges, simpler and safer for installation.ABS plastic mesh design, the air flows easily, and the small strip exhaust port can block dust, not easy to block.Wide Application: This air vent is used in offices, meeting rooms, auditoriums, music halls, bedrooms, kitchens, bathrooms, storage rooms and anywhere else air needs to move.