High-quality materials: The ventilation grille is made of high-quality stainless steel, which is anti-corrosion, anti-rust and oxidation-resistant, and it is not easy to deform. The surface is smooth and the edge curvature is natural. Honeycomb Grille Design: The circular ventilation grille is designed with small honeycomb holes with a diameter of 3 mm, which has good ventilation and air permeability and prevents insects such as cockroaches from entering. Buckle Design: The inner ring of the product is designed with a buckle. When installing, use a tool to protrude the buckle outward, and then insert it into the mounting hole, which can be reinforced to prevent shaking and falling. Easy to Install: The surface diameter of the stainless steel ventilation grille is 60mm/2.36in, and the inner ring diameter is 53mm/2.08in. The installation is simple and convenient, just take out the buckle and insert it into the mounting hole. Widely Used: Commonly used in wardrobes, cabinets, shoe cabinets, doors, lockers, etc. of the bedroom, kitchen, living room, etc., suitable for offices, conference rooms, auditoriums, concert halls and other places.