Stainless Steel Grille Hole - With honeycomb design, round holes are perfect for breathable design - Stainless steel ventilation grille small round holes can be dustproof and not easy to block. Easy to install stainless steel round air vent Open the tabs and press the ventilation opening to make it fit perfectly. You don't need to exert too much force and you don't need any auxiliary tools Round ventilation grille ideal for ventilation pipes, ventilation pipes, extractor hoods, air conditioners, kitchen fans and ventilation openings, all air vents on the wall, heat The air exhaust grille circular net allows the wind to flow freely in the room and offers you a fresh and odorless living and working environment. Features: Bottom diameter: 35+53mm. Material: Stainless steel. Color: Silver. Features: Stainless steel material, sturdy construction. Mirror finish, corrosion resistance and durable. Easy to install, convenient to use. For bathroom vents and extractors, air conditioning units,