It has strong ventilation with a fully enclosed pure copper motor that provides fast fume suction and efficient airflow, helping to keep indoor air clean and comfortable. Seven thickened blades deliver powerful and uniform air volume and are resistant to deformation. The fan operates smoothly with low vibration, ensuring high airflow while reducing noise. Constructed from iron material for durability. Available in multiple sizes: 4 inch, 6 inch, and 7 inch. Easy to install and suitable for use in kitchens, bathrooms, offices, meeting rooms, restaurants, supermarkets, cinemas, internet cafes, workshops, waiting halls, and more.Item Name: Exhaust Fan Material: Iron Features: Low Noise, Strong Wind, High Suction Voltage: 220V Frequency: 50 Hz Size Details: 4 Inch Black Diameter: 10cm / 3.94", Length: 7.3cm / 2.87" (Approx.) 6 Inch Black Diameter: 15cm / 5.91", Length: 15cm / 5.91" (Approx.) 7 Inch Black Diameter: 18cm / 7.09", Length: 14cm / 5.51" (Approx.) 4 Inch White Diameter: 10cm / 3.94", Length: 7.3cm / 2.87" (Approx.) 6 Inch White Diameter: 15cm / 5.91", Length: 15cm / 5.91" (Approx.) 7 Inch White Diameter: 18cm / 7.09", Length: 14cm / 5.51" (Approx.) Note: Due to lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional differences may occur due to manual measurement. Package Includes: 1 x Exhaust Fan Please check the product size and dimensions carefully before purchase to ensure compatibility with your needs. Detailed product information, including features and specifications, is provided in the title and description. We aim for complete customer satisfaction. If you have any questions or concerns, feel free to we're here to help. Thank you for choosing our product. We hope you enjoy it!