1. Durable stainless steel material ensures a long service life
2. Easy to install and the same diameter hole can be mounted directly, simple and quick
3. The air vents are perfect to use on kitchen cabinets, shoe cabinets, offices drawer other places
4. Outer diameter: 40mm, open hole diameter: 29mm, height: 10mm
5. 100pcs stainless steel air vents in a package