High Quality Air Vent: The Round Air Vent Is Made Of High Quality Stainless Steel, With Rounded And Smooth Edges, Strong And Durable, Waterproof, Rustproof And Anticorrosion. It Is Suitable For Humid Environments And Can Ensure A Long Service Life. Service Life.Good Ventilation: Stainless Steel Ventilation Grilles Facilitate Air Circulation, Promote Wind Circulation In Cabinets, Wooden Or Metal Cabinets, Reduce Humidity And Prevent The Formation Of Unpleasant Odors And Keep Furniture DryHoneycomb Design: Stainless Steel Ventilation Grilles Adopt Honeycomb Design. Exquisite Circular Holes Conform To The Breathable Design. Small Round Holes Can Be Dustproof, Windproof And Not Easy To Block, Prevent Foreign Objects From Entering, And Protect Items In The Cabinet And Prevent Pests From Entering When VentilatingEasy To Install: The Set Contains 30 Round Air Vents, With An Inner Diameter Of 35Mm And An Outer Diameter Of 42Mm. Edge Snap Design Is Easy To Install. For The Same Opening, You Can Directly Install On Various FurnitureWide Range Of Uses: The Perforated Ventilation Grille Is Very Suitable For Use In Closets, Shoe Racks, Offices, Conference Rooms, Concert Halls, Cabinets, Bookcases, Lockers, Drawers, Bathrooms And Other Places.