PRODUCT APPLICATIONSuch vents are used in offices, meeting rooms, auditoriums, concert halls, bedrooms, kitchens, bathrooms, storage rooms, and any other place where air flow is required.PRODUCT DETAILS Type: Circular Soffit Vents Material: Stainless Steel Color: White Top diameter: 35mm / 1.38 inches Bottom diameter: 25mm / 0.98 inches Installation height: 11mm / 0.43 inches Package Includes: 10pcs x Round Air VentsPRODUCT ADVANTAGES1. The vent is made of stainless steel, durable, and has strong gravity ability, not only will not rust, but the installation effect is more beautiful.2. The soft ventilation cover is designed in the shape of a bee's hive. The exquisite round holes not only prevent dust but also are not prone to clogging, allowing air to flow freely in the space.ATTENTIONHoles of the same diameter can be installed directly. If it becomes loose, just pry open the slot on the side to achieve a fastening effect. Before purchasing these circular exhaust covers, please carefully measure the diameter of the installation holes.