Dimensions: diameter: 42 mm, opening diameter: 35 mm, total height: 10 mm. Suitable for most sizes and easier to use. Material: Made with a and antioxidant stainless steel material that is not only tough and , strong antioxidant and antioxidant, but also has a beautiful circular grid design. Ventilation: the breathable mesh can reduce the smell in the closet, prevent foreign bodies from entering and protect objects in the closet. Elegant and fashionable, suitable for all . Stainless steel mesh, honeycomb design, exquisite round holes with breathable design, small round holes can be dustproof and not easy. Simple installation: the round ventilation holes can be installed quickly and easily, they are very easy to install and the holes of the same diameter can be installed directly. Application: Porous mesh ventilation holes are normally used for ventilation cabinets, cabinets, cabinets, shoemakers, etc. Suitable for offices, conference rooms, concert , auditoriums, etc. where porous mesh ventilation holes are required. Design: mesh, round. Colour: black Material: stainless steel Package Contents: 50 * Stainless steel ventilation grill 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 measurement allowed error is +/- 1-3cm.