Description:1. Material: The round air vent is made of plastic, is moisture-proof, and doesn't worry about rust like metal, a more beautiful installation effect.2. Design: The exhaust hole is designed with round mesh. Small round holes can be dust-proof and not easily blocked.3. Installation: The hole of the same diameter can be installed directly, Card slot with thread design, the fastening effect is good.4. Application: A circular soffit vent is suitable for cabinets, shoe cabinets, wardrobes, TV cabinets, drawers, etc., and is widely used in offices, bathrooms, kitchens and other furniture needed to exhaust the occasion.Specification:Color: WhiteMaterial: PlasticOutside Diameter: 30mm / 1.18"Bottom Diameter: 25mm / 0.98"Mounting Height: 9mm / 0.35"Package Content: 12pcs x Circular Soffit Vents.