High quality material: Our weather guard is made of high quality stainless steel, given thickness and weight, strong and durable, not easy to deform, beautiful polished surface, rustproof , suitable for indoor and outdoor use. Dimensions and weight: total diameter: 140 mm, total height: 53 mm, diameter of the fixing ring part: 97 mm (suitable for holes of approximately 100 mm in diameter), thickness: 2.2 mm. A single weight corresponds to approximately: 92 grams. Double protection: the front slats are inclined like a roof to prevent rain and snow from falling (when mounted vertically on the wall) and stable to prevent mice, birds and other large animals from entering the nest tip. Inside is also a relatively dense stainless steel mesh that can prevent some small mosquitoes, insects, etc. from entering. from entering. Buckle fixing and double screw fixing: On the surface of the weather protection grille there are three fixing buckles which can be easily adjusted and fixed more securely. And the plane is fixed by two screws, it does not move. Wide range of applications: our double-fixed weather protection grille is suitable for constructions made of different materials (wood, glass, bricks , cement, etc.). It can help better ventilate your kitchen, garage, bathroom, bedroom, cellar, etc. while preventing rats, snakes, mosquitoes, etc. Sold by grid cool store