The package includes: The product includes 1 ventilation grille. It is used to protect ventilation systems for chimneys and exterior walls. Suitable for indoor and outdoor use. Size: The lamellated grille has a total diameter of 145 mm, a total height of 40 mm, and a diameter of 98 mm for the fixing ring section. Suitable for holes up to about 100 mm in diameter. Material: The weatherproof grille is made of stainless steel, strong and durable, with a certain thickness and weight, it is not easy to deform, the surface is smooth and it is not easy to rust. Protection: Ventilated grilles protect against rain, snow, frost, or UV rays, function as a ventilation system, protect chimneys and walls, and keep mosquitoes and insects away. Suitable for indoor and outdoor use. Multi-purpose applications: The air vent is often used in bedrooms, kitchens, toilets, bathrooms, garages, cellars, and frigolite, etc., to provide good ventilation and protection. Specifications: - Material: Stainless steel - Quantity: 1 piece - Color: Silver - Size: 145*98*40mm - Contents: 1 * ventilation grille Note: 1. Due to manual measurement, please accept a deviation of 1-2 mm. 2. Due to different screen displays, there may be a color difference in the product's color. 3. If you are not satisfied with the product you received, please contact us.