Description: 【Material】The round BBQ smokers grilling air vent cover is made of stainless steel, ensuring long-lasting use and resistance to rust. 【Product Dimensions】With a compact size of 9.5cmx9.5cm, this air vent fits and replaces old part so you can easily install it within few minutes. 【Adjustable Ventilation】This BBQ grill smokers exhaust vent hole size is adjustable, easy and covenient to use. Grill Damper for Increased Air Flow, allows you to control the air flow and maintain a constant temperature. 【Versatile Use】Air Vent Cover can be used for drying ovens, ovens, test boxes, test chamber, thermostat boxes, high temperature and constant temperature box, etc. 【Professional and Practical】Easy opening and closing for better air flow control, quiet and smooth control. Practical accessory for ovens. Ideal replacement grill parts stove air vent damper. Specification: Material: Stainless Steel Size Chart: 9.5cmx9.5cm/3.74inchx3.74inch Package Includes:(4 Pack) 1 Air Vent Cover