Multiple Uses--The Round Ventilation Grille for the Breathable of Cabinet, Shoe Cabinet, Wardrobe, Decorative Cabinet and Offices, Meeting Rooms, Music Hall, ect. Stainless steel material-- The round air vents are made of stainless steel, durable, and strong ability to withstand gravity, not only oxidation resistance, but also installation effect is good . Enjoy an odor-free environment-- The stainless steel air vent allows wind to flow easily into the spaces you stay in, providing you with a fresh and odorless living and working environment. Round Mesh and Honeycomb Design--Stainless Steel Mesh Hole With honeycomb design, exquisite round holes conform to breathable design, small round holes can be dustproof and not easy to block. 53 diameter Easy to install--This air vent hole does not require much installation effort, the same hole diameter can mount directly, just simple installation is very strong.