Air vent grille is compatible for ceiling vent as well as floor vent. Air vent grille is made of PP and UV, durable construction which is built to last. This air vent grille presents smooth edge and it will not scratch your hands or damage your vent. Features -Color:White -Material:PP, UV -Size:20.50X20.20X3.80cm/8.06X7.94X1.49in -Connection diameter: 127mm - Air vent grille is easy for installation and removal, you can install it at wall, ceiling, floor and more. - Return air grille is made of PP and UV for long-term use, not easily fade, damage and crack. - Ceiling register with simple design and fine craftsmanship, is convenient for you to replace the worn grille. - Return air vent grille helps to prevent rain, snow, wind, small animals from entering your house. - Air grille cover is specially designed for ceiling, also for floor, not easy to break, and can be used with confidence. Package list: 1 x vent cover