Dimensions: outer diameter: 42 mm, opening diameter: 35 mm, total height: 10 mm. Fits most sizes and is easier to use. Material: Made of a durable and antioxidant stainless steel material that is not only tough and durable, strong antioxidant and antioxidant, but also has a beautiful circular grille design. Ventilation: the breathable mesh can reduce odors in the wardrobe, prevent foreign objects from entering and protect items in the wardrobe. Elegant and fashionable, suitable for everyone. Stainless steel mesh, honeycomb design, exquisite round holes with breathable design, small round holes can be dustproof and not easy. Easy installation: the round ventilation holes can be installed quickly and easily, they are very easy to install and holes of the same diameter can be installed directly. Use: Porous mesh ventilation holes are normally used for ventilation cabinets, cupboards, wardrobes, shoemakers, etc. Suitable for offices, conference rooms, concerts, auditoriums, etc. where porous mesh ventilation holes are required. Design: Mesh, round Color: black Material: stainless steel Package contents: 30 * Stainless steel ventilation grilles Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.