PRODUCT APPLICATIONSuch vents are used in offices, meeting rooms, auditoriums, concert halls, bedrooms, kitchens, bathrooms, storage rooms, and any other place where airflow is required.PRODUCT DETAILS Type: Round Soffit Vents Material: Plastic Color: White Outer diameter: 39.5mm / 1.56 inches Bottom diameter: 35mm / 1.4 inches Installation height: 11mm / 0.43 inches Package Includes: 10pcs x Round Soffit VentsPRODUCT ADVANTAGES1. Made of PP plastic, durable, impact resistant, scratch resistant, moisture-proof, corrosion resistant, no peculiar smell, not only can be resistant to oxidation, and the installation effect is more beautiful.2. Strong and light, smooth edge, simple and safe installation. PP plastic screen design, with easy airflow, a small strip exhaust hole can block dust, but it is not easily clogged.ATTENTIONIt is recommended to wear gloves during installation. When installing, push the cover plate into the installation hole. The cover plate should be fastened tightly and not loosen easily. Before purchasing these circular exhaust covers, please carefully measure the diameter of the installation holes.