Description:1. Material: The round air vent is made of stainless steel, rust and corrosion-resistant, durable, and has a strong ability to withstand gravity, not only anti-oxidation but also a more beautiful installation effect.2. Design: Dual panel design, the exhaust hole is designed with round mesh. The small round hole can be dust-proof and not easily blocked.3. Installation: The hole of the same diameter can be installed directly, the inner and outer plates are easy to install and can be installed by tightening the threads.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: Silver ToneMaterial: Stainless SteelOutside Diameter: 42mm / 1.65"Bottom Diameter: 33mm / 1.3"Clamp Thickness Range: 11-18mm / 0.43"-0.71"Package Content: 20pcs x Circular Soffit Vents(Including front and back)