Air vent hole allows wind to flow easily for cabinets,Keep your furniture dry well.This kitchen mesh air hole is made of high quality stainless steel,rust and corrosion resistant.The air vent hole has honeycomb design,Small round holes can be dustproof,windproof and not easy to block,which creates a odorless environment for you.Bottom diameter:35mm,Thickness:7mm.The same hole diameter can mount directly,just the simple installation is very strong.Perforated air vents are ideal for wardrobes,shoe cabinets,offices,conference rooms,concert halls or other places. Note: The data are all manual measurements, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, whichever is the actual object received.