Description: 【Quality Material】:Mesh Vent Hole is made of high quality stainless steel and material, strong and durable. 【Breathable and dustproof】:Ventilation Cover breathable design, small round holes can be dustproof, not easy to block. Give you a fresh and breathable comfortable environment. 【Product parameters】:Air Vent Cover outer diameter 42mm, inner diameter 35mm, thickness adjustable 12 to 18mm. suitable for 35mm, board thickness 12 to 18mm. 【Easy Installation】:Round Soffit Vent can be installed directly, without complicated operation procedures. 【Applicable to a variety of scenarios】:Circular Soffit suitable for a wide range of scenarios, such as furniture cabinets, kitchen cabinets, shoe cabinets, closets, coffee table drawers. Size Chart: Outer diameter:4.2cm/1.65inch Inner diameter:3.5cm/1.38inch Thickness Adjustable:1.2cm-1.8cm/0.47inch-0.71inch Applicable hole diameter:3.5cm/1.38inch Board thickness: 1.2cm-1.8cm/0.47inch-0.71inch Package Includes: 2 Mesh Vent Holes Note: Please allow slightly errors due to manual measurement and different monitors.